horny covering

См. также в других словарях:

• Covering scale — Scale Scale, n. [Cf. AS. scealu, scalu, a shell, parings; akin to D. schaal, G. schale, OHG. scala, Dan. & Sw. skal a shell, Dan. ski[ae]l a fish scale, Goth. skalja tile, and E. shale, shell, and perhaps also to scale of a balance; but perhaps… …   The Collaborative International Dictionary of English

• integument — /in teg yeuh meuhnt/, n. 1. a natural covering, as a skin, shell, or rind. 2. any covering, coating, enclosure, etc. [1605 15; < L integumentum a covering. See IN 2, TEGUMENT] Syn. 1. cortex, involucre, involucrum. * * * Covering of the body,… …   Universalium

• caprimulgiform — ▪ order of birds Introduction also called  nightjars    any of about 120 species of soft plumaged birds (bird), the major groups of which are called nightjars (nightjar), nighthawks (nighthawk), potoos (potoo), frogmouths (frogmouth), and owlet… …   Universalium

• charadriiform — ▪ bird order Introduction    any member of the large group of birds (bird) that includes the sandpipers (sandpiper), plovers (plover), gulls (gull), auks (auk), and their relatives. These birds form an important and familiar segment of the… …   Universalium

• hyperkeratosis — hyperkeratotic /huy peuhr ker euh tot ik/, adj. /huy peuhr ker euh toh sis/, n. 1. Pathol. a. proliferation of the cells of the cornea. b. a thickening of the horny layer of the skin. 2. Also called x disease. Vet. Pathol. a disease of cattle… …   Universalium

• hoof — hu̇f, hüf n, pl hooves hüvz, hu̇vz also hoofs a horny covering that protects the ends of the toes of numerous plant eating 4 footed mammals (as horses or cattle) also a hoofed foot * * * (hoof) [L. ungula] the hard, horny casing of the end of… …   Medical dictionary

• Dertrotheca — Der tro*the ca, n. [NL., fr. Gr. ? beak + ? box, case.] (Zo[ o]l.) The horny covering of the end of the bill of birds …   The Collaborative International Dictionary of English

• Rhamphotheca — Rham pho*the ca, n.; pl. {Rhamphothec[ae]}. [NL., fr. Gr ra mnos a beak + ?? a case.] (Zo[ o]l.) The horny covering of the bill of birds. [1913 Webster] …   The Collaborative International Dictionary of English

• Rhamphothecae — Rhamphotheca Rham pho*the ca, n.; pl. {Rhamphothec[ae]}. [NL., fr. Gr ra mnos a beak + ?? a case.] (Zo[ o]l.) The horny covering of the bill of birds. [1913 Webster] …   The Collaborative International Dictionary of English

• bill — I. noun Etymology: Middle English bile, from Old English; akin to Old English bill Date: before 12th century 1. the jaws of a bird together with their horny covering 2. a mouthpart (as the beak of a turtle) that resembles a bird s bill 3. the… …   New Collegiate Dictionary

• periostracum — n. [Gr. peri, around; ostrakon, shell] A thin skin or horny covering on the exterior of the shells of most Mollusca and Brachiopoda; periostracal adj …   Dictionary of invertebrate zoology