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1 fan-shaped round
Англо-русский словарь нормативно-технической терминологии > fan-shaped round
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2 fan-shaped round
Большой англо-русский и русско-английский словарь > fan-shaped round
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3 fan-shaped round
Англо-русский словарь нефтегазовой промышленности > fan-shaped round
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4 fan-shaped round
1) Горное дело: веерный комплект взрывных скважин, комплект шпуров с веерным врубом2) Нефть: веерообразное расположение скважин -
5 fan shaped round
веерообразное расположение шпуров или скважин (в забое подземной выработки).English-Russian dictionary of terms for geological exploration drilling > fan shaped round
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6 fan shaped round
веерообразный вруб; веерообразное расположение шпуров (скважин) в забое -
7 fan-shaped round
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8 round
1. круг, окружность || округлять; скруглять || круглый2. круговое движение; цикл || круговой3. обход
* * *
* * *
круглый; окатанный; круговой
* * *
комплект шпуров; комплект скважин- cementation round
- congo rounds
- drill round
- fan-shaped round
- missed round
- select round
- slabbing round
- special round
- standard round
- triangular round
- tube round -
9 веерообразное расположение скважин
Большой англо-русский и русско-английский словарь > веерообразное расположение скважин
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10 belt
ремень; плоский приводной ремень; лента; лента конвейера; пояс; брекер шины; брекерный пояс; полоса; бандаж; связь; звено; пассик; лента дорожного финишёра; обработка бетонного дорожного покрытия лентой; зона; район; II опоясывать; разг. быстро мчаться- belt anchorage location - belt anchorage point - belt-and-pulley arrangement - belt-and-pulley drive - belt and straight grinder - belt angle - belt brake - belt bucket-elevator - belt carcass - belt carrier - belt catch - belt cement - belt-chain conveyer - belt channel - belt clamp - belt-cleaning device - belt cone - belt-conveyed concrete - belt conveyer - belt-conveyer weigher - belt conveyor - belt creep - belt deflection - belt-down the road - belt dressing - belt-dressing composition - belt drive - belt-drive configuration - belt-driven - belt-driven hammer - belt-driven handpiece - belt-driven machine - belt-driven shuttle - belt-driven shuttle unit - belt-driven spindle - belt-driven wheelhead - belt driving - belt-driving over - belt-driving under - belt-drop hammer - belt-drop stamp - belt duck - belt dynamometer - belt fastener - belt feed - belt filter - belt finisher - belt flapping - belt for windshields - belt fork - belt-fray indicator - belt gear - belt gearing - belt grade - belt grinder - belt grinding - belt-grinding - belt-grinding machine - belt guard - belt-guard grid - belt guide - belt-guide fork - belt hammer - belt head - belt highway - belt hook - belt horsepower - belt idler - belt joint - belt lace - belt lacing - belt line - belt-line highway - belt-line railroad - belt loader - belt-machining apparatus - belt magazine - belt misalignment - belt modulus - belt mounting point - belt of land - belt-on control device - belt-operated - belt performance - belt pitch - belt-pitch line - belt polisher - belt power - belt pretension - belt pull - belt-pulley crown diameter - belt-pulley flywheel - belt punch - belt rail - belt railroad - belt release - belt-release button - belt reverser - belt reversing - belt ring - belt rivet - belt road - belt roller - belt route - belt sag - belt-sag factor - belt sagging - belt sander - belt saw - belt screen - belt screw - belt sheave - belt shifter - belt shifter cam - belt-shifting device - belt-shifting fork - belt-shifting mechanism - belt-shuttle unit - belt sling - belt slip - belt-slip detector - belt slipper - belt-slope tension - belt sorter - belt spindle - belt stacker - belt stress - belt stretcher - belt-stretching roller - belt tautness - belt tension - belt-tension adjuster - belt-tension adjustment - belt-tension lever - belt tensioner - belt tensioning - belt-tensioning bolt - belt test - belt tightener - belt-tightening pulley - belt track - belt transmission - belt transporter - belt tripper - belt-turnover system - belt-twist system - belt-type conveyor - belt-type desintegrator - belt-type feeder - belt-type grinder - belt-type levelling device - belt-type toolchanger - belt whipping - belt with half twist - belt with reinforced edge - belt work - active safety belt - armored belt - automatic seat belt control unit - automatic shoulder seat belt control belt - auxiliary drive belt - balance shaft belt kit - balata belt - banded-together belt - bare duck belt - buckle one's belt - buffing belt - camel hair belt - canvas belt - cemented belt - chain belt - channel belt - cleated belt - closed loop belt - coated abrasive belt - cog belt - cogged belt - continuous belt - conveyer belt - conveying belt - conveyor belt - conweigh belt - cord belt - cotton belt - crawler belt - cross belt - crossed belt - cross-stitched belt - discharge belt - double-layer belt - drive belt - driving belt - elevator belt - emery belt - endless belt - endless metal belt - face belt - fan belt - fasten one's belt - feed belt - finishing belt - flat belt - floating belt - flue belt - gate belt - glued belt - green belt - grinding belt - grinding aid belt - gut belt - half-crossed belt - halved belt - hemp belt - high-speed reversing belt - inclined belt - indexing belt - inertia safety belt - inertia seat belt - laced belt - laminated belt - lap belt - layered belts - leather belt - link belt - link leather belt - loosen one's belt - main belt - main driving belts able to transmit any required H.P. - mesh belt - metal belt - mother belt - multiple-V belt - oblique belt - open belt - perforated belt - poly-V belt - power transmission belt - quarter-turn belt - quarter-twist belt - radius belt - raised rib belt - resin-bond cloth belt - return belt - reverse belt - reversible belt - round belt - round driving belt - round-section driving belt - rubber belt - rubber-impregnated belt - safety belt - sand belt - sanding belt - seat belt - seat-integrated seat belt - seed belt - self-retracting seat belt - serpentine belt - sewn belt - shelter belt - shifting belt - shoulder belt - three-point seat belt - single-ply belt - solid woven conveyor belt - split belt - steel belt - steel cord conveyor belt - stepped-ply belt - stitched belt - stretching of a belt - synchronous belt - take up the belt - tapered grinding belt - three-ply belt - throw-off the belt - tighten belt - timing belt - toothed belt - transmission belt - travelling belt - triangular belt - turn belt - two-ply belt - two-point seat belt - undo one's belt - V-belt - V-ribbed belt - V-shaped belt - variable speed belt - variable speed V belt - vee belt - wedge belt - weigh belt - wet grinding belt - wind belt - woven fabric belt -
11 antenna
см. тж. aerial- achromatic antenna
- active antenna
- actual antenna
- adaptive antenna
- aerodiscone antenna
- aerospace antenna
- air-frame antenna
- airplane antenna
- Alexanderson antenna
- Alford antenna
- annular antenna
- antifading antenna
- antistatic antenna
- aperiodic antenna
- aperture antenna
- aperture-angle antenna
- arc antenna
- artificial antenna
- automobile antenna
- auxiliary ship antenna
- axial-symmetric antenna
- backfire antenna
- back-to-back antenna
- band antenna
- base antenna
- batwing antenna
- beam antenna
- Beverage antenna
- biconical antenna
- bifocal antenna
- bilateral antenna
- billboard antenna
- block antenna
- bobtail curtain antenna
- bow-tie antenna
- box antenna
- broadband antenna
- broadbeam antenna
- broadside antenna
- built-in antenna
- butterfly antenna
- cage antenna
- capacitance-feeded antenna
- cap-type antenna
- car antenna
- car TV-antenna
- Cassegrain antenna
- cavity antenna
- center-fed reflector antenna
- cheese antenna
- circular antenna
- coaxial antenna
- coil antenna
- colinear antenna
- combined antenna
- communal antenna
- compact antenna
- complementary-pair antenna
- complementary-steerable antenna
- compound reflector antenna
- cone antenna
- conical antenna
- conical-horn antenna
- conical-monopole antenna
- corner antenna
- corrugated antenna
- cosecant-squared antenna
- coupled antenna
- cradle antenna
- cross antenna
- crossed antenna
- cryogenic antenna
- cubical antenna
- curtain rhombic antenna
- custom-configured antenna
- custom-made antenna
- cylinder antenna
- deer-horn antenna
- delta-loop antenna
- despun antenna
- diamond antenna
- diamond-loop antenna
- dielectric-rod antenna
- dieletric-lens antenna
- diffraction antenna
- dipole antenna
- direct-aperture antenna
- directed-sector antenna
- directional antenna
- dish antenna
- disk antenna
- disk-cone antenna
- disk-on-rod antenna
- dismountable antenna
- dome antenna
- double-band antenna
- double-square antenna
- doublet antenna
- double-umbrella antenna
- driven antenna
- dual-offset antenna
- dummy antenna
- earth-coverage antenna
- electric-pair antenna
- electronically scanned antenna
- electronically steerable antenna
- elementary antenna
- eleven-element antenna
- embedded-wire anti-ice antenna
- emergency antenna
- emergency ship antenna
- empty-helix antenna
- end-fire antenna
- E-plane-type pillbox antenna
- equiangular-spiral antenna
- exciting antenna
- factory-made antenna
- fan antenna
- fan-beam antenna
- fanned-beam antenna
- ferrite-rod antenna
- filament antenna
- filter-plexed antenna
- fin antenna
- finding antenna
- fin-mounted antenna
- fishbone antenna
- fishpole antenna
- flagpole antenna
- flat antenna
- flat-top antenna
- flexible antenna
- flush-mounted antenna
- FM unipolar antenna
- foldable antenna
- fold-down antenna
- four-element antenna
- four-tier antenna
- frame antenna
- Fresnel antenna
- full-band antenna
- fully steerable antenna
- glass-mount antenna
- glass-plastic antenna
- global coverage antenna
- GP antenna
- Gregorian antenna
- ground-to-air antenna
- half-pillbox antenna
- half-rhomb antenna
- half-slot antenna
- half-wave antenna
- halo antenna
- harmonic antenna
- hectometer antenna
- helical antenna
- H-field antenna
- high-efficient antenna
- high-impact antenna
- hoghorn antenna
- horizontally-polarized antenna
- horn-lens antenna
- H-plane antenna
- hula-loop antenna
- hyperbolic antenna
- image antenna
- imaging antenna
- indoor antenna
- instrumentation antenna
- instrument-panel antenna
- internal antenna
- intersatellite antenna
- inverse Cassegrain antenna
- inverted vee antenna
- IR-antenna
- isotrope antenna
- isotropic antenna
- laminated antenna
- L-antenna
- lazy H antenna
- LB-antenna
- leaky-wave antenna
- lens antenna
- linear antenna
- linear-conductor antenna
- locomotive antenna
- log-periodic antenna
- long wire antenna
- long-conductor antenna
- long-range antenna
- loop antenna
- loop-monopole antenna
- loop-stick antenna
- low-angle antenna
- low-frequency antenna
- low-silhoette antenna
- LP antenna
- magnetic antenna
- magnetic-based antenna
- magnetic-cored antenna
- magnetic-dipole antenna
- magnetic-sole antenna
- main ship antenna
- mains antenna
- manypole antenna
- mast antenna
- master antenna
- matched-filter antenna
- meander-type chain antenna
- metallic antenna
- microwave antenna
- miniloop antenna
- mirror antenna
- monoconical antenna
- monopillar helix antenna
- monopole antenna
- monopole-notch antenna
- monopulse antenna
- multiband antenna
- multibeam antenna
- multichannel antenna
- multielement dipole antenna
- multifeed antenna
- multilevel antenna
- multilobed antenna
- multimode antenna
- multiple antenna
- multiple-beam antenna
- multiunit antenna
- MW/DW antenna
- narrow-band antenna
- narrow-beam antenna
- near-field antenna
- near-field Cassegrain antenna
- near-surface antenna
- noise antenna
- noise-protected antenna
- nondirectional antenna
- nonresonant antenna
- notch antenna
- offset antenna
- off-surface antenna
- omniazimuthal antenna
- omnidirectional antenna
- open antenna
- orthogonal antennas
- outdoor antenna
- outer frame antenna
- outer pager antenna
- overtuned antenna
- paddle antenna
- paired antenna
- parabolic-dish antenna
- paraboloid antenna
- paracylinder antenna
- passive antenna
- paste-on antenna
- paste-on-type antenna
- pencil-beam antenna
- periodic antenna
- periscope antenna
- pickup antenna
- piggyback antenna
- pill-box antenna
- pin antenna
- pivot antenna
- planar antenna
- planar-array antenna
- plastic antenna
- plate antenna
- plural-beam antenna
- pocket antenna
- polar antenna
- prepositioned antenna
- prime-focal antenna
- progressive wave antenna
- pylon antenna
- pyramidal antenna
- quadrate antenna
- quarter-wave antenna
- radio-relay antenna
- reference antenna
- reflective array antenna
- reflector antenna
- replaceable-elongated antenna
- reserve antenna
- resonance antenna
- resonant antenna
- retrodirective antenna
- retroreflector antenna
- rhombic antenna
- ribbon antenna
- rib-mesh antenna
- ring antenna
- rod antenna
- roof antenna
- roof-top antenna
- room antenna
- rotatable antenna
- round diagram antenna
- running wave antenna
- satcom antenna
- satellite-communication antenna
- satellite-to-earth station antenna
- satellite-to-satellite antenna
- SB-antenna
- scimitar antenna
- scin antenna
- sector antenna
- sectoral antenna
- self-phasing antenna
- self-resonant antenna
- sense antenna
- sensing antenna
- series-fed vertical antenna
- seven-element antenna
- shaped-beam antenna
- sharp directional antenna
- shorted antenna
- Shpindler antenna
- shunt-excited antenna
- shunt-fed vertical antenna
- single-band antenna
- single-channel antenna
- single-element antenna
- single-horn antenna
- single-polarized antenna
- sixteen-element antenna
- slave antenna
- sleeve antenna
- sleeve-dipole antenna
- slope beam antenna
- slot antenna
- slotted-ring antenna
- solid antenna
- spaced antennas
- space-erected antenna
- spark-proof antenna
- spherical antenna
- spiderweb antenna
- spike antenna
- spiral antenna
- spiral-helix antenna
- spiral-phase antenna
- split-beam antenna
- square antenna
- stacked antenna
- stacked-dipole antenna
- standard antenna
- standing wave antenna
- static antenna
- stationary antenna
- steerable antenna
- stowable antenna
- strength antenna
- stripline antenna
- stripline-slot antenna
- stub-matched antenna
- submarine receiving antenna
- submarine transmitting antenna
- subwavelength antenna
- suppressed antenna
- surface wave antenna
- surrogate antenna
- suspended-patch antenna
- symmetrical antenna
- synphased antenna
- synthetic antenna
- synthetic-aperture antenna
- T-antenna
- telemetering antenna
- telescopic antenna
- television receive only antenna
- terminal antenna
- terrestrial-microwave point-to-point horn antenna
- test antenna
- three-band antenna
- three-element antenna
- three-sector antenna
- tiny antenna
- tower antenna
- tower-type antenna
- trailing antenna
- transceiving redirecting antenna
- transistorized antenna
- transmitting-receiving antenna
- trap-loaded antenna
- traveling-wave antenna
- triangular antenna
- triple-square antenna
- tripole antenna
- trumpet antenna
- turnstile antenna
- TV-antenna
- twelve-channel antenna
- two-element antenna
- Tx antenna
- UHF-antenna
- umbrella antenna
- unipole antenna
- unipole-notch antenna
- universal antenna
- unpositioned antenna
- USB-antenna
- V-antenna
- vertical antenna
- vertical polarization antenna
- vibrator antenna
- Vivaldi antenna
- V-strip antenna
- wave-channel antenna
- waveguide antenna
- whip antenna
- wide-band antenna
- wire antenna
- world-wide receiving antenna
- Wullenweber antenna
- X-beam antenna
- Yagi antenna
- Yagi-Uda antenna
- zig-zag antenna
- zoned antennaEnglish-Russian dictionary of telecommunications and their abbreviations > antenna
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12 bearing
опора; подшипник; вкладыш (подшипника); цапфа; опорная площадь; точка опоры; II направляющий; опорный; несущий; содержащий; поддерживающий- bearing body - bearing bolt - bearing bond - bearing box - bearing burning-out - bearing bush - bearing bushing - bearing cage - bearing cap - bearing capacity - bearing capacity of soil - bearing carrier - bearing clearance - bearing cone - bearing cup - bearing cup inserter - bearing cup inserter set - bearing disc - bearing driver - bearing driver set - bearing edge - bearing extractor - bearing face - bearing feed pipe - bearing flange - bearing friction - bearing friction loss - bearing housing - bearing journal - bearing lining - bearing load - bearing metal - bearing oil - bearing oil pipe - bearing oil pipe union - bearing plate - bearing power - bearing preload indicator - bearing pressure - bearing puller - bearing race - bearing reaction - bearing release lever - bearing remover - bearing replacer - bearing retainer puller - bearing roller - bearing saddle bore - bearing seat - bearing shell - bearing spring - bearing strip - bearing stud - bearing support - bearing surface - bearing surface area - bearing take-up - bearing tension indicator - bearing-up pulley - bearing value - bearing wheel - bearing with side plate - bearing with taper bore - bearing wrench - line up the bearing - air-lubricated thrust bearing - big-end bearing - blade bearing - block bearing - bottom-end bearing - bracket bearing - bronze bearing - bronze-backed bearing - bush bearing - cadmium-alloy bearing - cageless bearing - camshaft bearing - central bearing - centre bearing - centre main bearing - clearance bearing - clutch bearing - clutch pilot bearing - clutch release bearing - clutch throwout bearing - clutch thrust bearing - clutch withdrawal bearing - collar bearing - collar step bearing - collar thrust bearing - composite bearing - compound bearing - conical bearing - conical roller bearing - conical roller thrust bearing - connecting rod bearing - connecting rod big-end bearing - copper-lead bearing - crank bearing - crankpin bearing - crankshaft bearing - crankshaft main bearing - cup-and-cone bearing - cylindrical roller bearing - cylindrical roller bearing with long rollers - cylindrical roller bearing without inner and outer rings - deep-groove bearing - differential bearing - discoloured bearing - divided bearing - double angular bearing - double-cone bearing - double-cup bearing - double-plate bearing - double-row bearing - double-row angular contact ball bearing - double-row radial-thrust ball bearing - double seal bearing - double sealed bearing - double-shield bearing - double-shield ball bearing - double-thrust bearing - drop-hanger bearing - duplex bearing - elastically yielding bearing - end bearing - end journal bearing - end thrust bearing - even bearing - fabri-seal bearing - fan and pump shaft bearing - fan spindle bearing - filling slot-type bearing - fitted bearing - fixed bearing - flanged cup bearing - flat bearing - flexible roller bearing - floating bearing - foot-step bearing - fork bearing - free bearing - front main bearing - front-wheel bearing - fulcrum bearing - full-journal bearing - full-type bearing without retainer - graphite bearing - graphited oilless bearing - gudgeon bearing - guide bearing - half-bearing - hanger-bearing - head bearing - heavy-duty bearing - high-speed bearing - hot bearing - inner bearing - intermediate bearing - iron base bearing - jeweled bearing - journal bearing - king-pin bearing - king pin thrust bearing - knife bearing - knife-edge bearing - knuckle bearing - lay shaft bearing - leading-screw bearing - lignum vital bearing - locating bearing - location bearing - lower bearing - lubri-seal bearing - magneto bearing - main bearing - main shaft pilot bearing - middle bearing - nail bearing - narrow-type bearing - neck journal bearing - needle bearing - needle bearing with closed end - needle roller bearing - non-filling slot-type bearing - notched type bearing - oblique pillow-block bearing - oblique plummer-block bearing - oilless bearing - oil-ring bearing - one-shield bearing - oscillation bearing - outboard bearing - outborne bearing - outer bearing - overhung bearing - oversize bearing - parallel bearing - parallel roller bearing - partial journal bearing - pedal bearing - pedestal bearing - pendulum bearing - permanently sealed bearing - pilot bearing - pin rocker bearing - pivot bearing - pivoted bearing - plain bearing - plain-and-ball bearing - plain journal bearing - pockwood bearing - preloaded bearing - prelubricated bearing - primary shaft bearing - propeller shaft centre bearing - quarter box bearing - quill bearing - radial bearing - radial ball bearing - radial-thrust bearing - radial-thrust ball bearing - rear main bearing - reciprocating bearing - release bearing - reverse idler gear bearing - rigid-type bearing - ring lubricating bearing - ring oiling bearing - ring step bearing - rocker bearing - roller bearing - roller bearing with spiral - roller step bearing - roller thrust bearing - rolling bearing - rolling contact bearing - round bearing - sealed bearing - self-setting bearing - Seller's bearing - shaft bearing - shielded bearing - shielded ball bearing - single-plate ball bearing - single-row angular contact ball bearing with split outer race - single-row ball bearing - single-row deep groove ball bearing - single-row maximum capacity bearing - single-row radial ball bearing - single-shield bearing - single-thrust bearing - sintered metal powder bearing - sleeve bearing - sleeve half-bearing - sliding bearing - snap-ring bearing - snap-ring ball bearing - solid bearing - solid roller bearing - spherangular roller bearing - spherical bearing - spherical roller bearing - spherical seating ring bearing - spigot bearing - split bearing - split clamping bearing - split inner race bearing - split outer race bearing - spring bearing - steel-backed bearing - steep-angle bearing - steering knuckle thrust bearing - steering shaft thrust bearing - step bearing - straddle-mounted bearings - stuffing box bearing - supporting bearing - swing bearing - swiveling bearing - tail bearing - taper roller bearing - taper roller bearing with flanged cup - taper thrust bearing - tapered bearing - tapered roller bearing - thin wall bearing - thin walled bearing - throw bearing - throw-out bearing - thrust bearing - thrust clutch bearing - thrust roller bearing - thrust taper roller bearing - tilting bearing - Timken bearing - tip bearing - toe bearing - tooth bearing - transmission bearing - transmission countershaft bearing - transmission main drive gear bearing - transmission main shaft pilot bearing - transverse bearing - trunnion bearing - tumbler bearing - two-direction thrust bearing - two-part bearing - unbushed bearing - universal-joint bearing - unnotched bearing - upper bearing - water-cooled bearing - water-sealed bearing - white metal bearing - wide inner ring bearing - wiped bearing - wound roller bearing - wound roller bearing with solid outer race - wound roller bearing with split outer race - wound roller bearing without inner ring - wrist pin bearing
См. также в других словарях:
fan — [[t]fæ̱n[/t]] ♦♦ fans, fanning, fanned 1) N COUNT: usu n N, N of n If you are a fan of someone or something, especially a famous person or a sport, you like them very much and are very interested in them. If you re a Billy Crystal fan, you ll… … English dictionary
Round-tower church — Round tower churches are a type of church found mainly in England, almost solely in East Anglia; of about 185 surviving examples in the country, 124 are in Norfolk, 38 in Suffolk, 6 in Essex, 3 in Sussex and 2 each in Cambridgeshire and Berkshire … Wikipedia
Shaped charge — Sectioned high explosive anti tank round with the inner shaped charge visible … Wikipedia
Venus's fan — Venus Ve nus, n. [L. Venus, eris, the goddess of love, the planet Venus.] 1. (Class. Myth.) The goddess of beauty and love, that is, beauty or love deified. [1913 Webster] 2. (Anat.) One of the planets, the second in order from the sun, its orbit … The Collaborative International Dictionary of English
веерообразное расположение скважин — — [http://slovarionline.ru/anglo russkiy slovar neftegazovoy promyishlennosti/] Тематики нефтегазовая промышленность EN fan shaped round … Справочник технического переводчика
theatre — /thee euh teuhr, theeeu /, n. theater. * * * I Building or space in which performances are given before an audience. It contains an auditorium and stage. In ancient Greece, where Western theatre began (5th century BC), theatres were constructed… … Universalium
interior design — 1. the design and coordination of the decorative elements of the interior of a house, apartment, office, or other structural space, including color schemes, fittings, furnishings, and sometimes architectural features. 2. the art, business, or… … Universalium
Fibula (brooch) — A Fibula is an ancient brooch. (Plural: fibulae). Technically, the latin term fibulae refers specifically to Roman brooches, however, the term is widely used to refer to brooches from the entire ancient and early medieval world. Unlike modern… … Wikipedia
fern — fernless, adj. fernlike, adj. /ferrn/, n. any seedless, nonflowering vascular plant of the class Filicinae, of tropical to temperate regions, characterized by true roots produced from a rhizome, triangular fronds that uncoil upward and have a… … Universalium
Fern — /ferrn/, n. a female given name. * * * Any of about 10,000–12,000 species (division Filicophyta) of nonflowering vascular plants that have true roots, stems, and complex leaves and reproduce by spores. Though ferns were once classified with the… … Universalium
Glossary of botanical terms — Many of the terms used in Wikipedia glossaries (often most) are already defined and explained within Wikipedia itself. However, lists like the following indicate where new articles need to be written and are also useful for looking up and… … Wikipedia