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1 raggio
m (pl -ggi) raymathematics radiusraggio d'azione rangefig duties, responsibilitiesraggio di sole ray of sunshineraggi pl X x-raysraggi pl infrarossi/ultravioletti infrared/ultraviolet rays* * *raggio s.m.1 ray, beam: raggio di sole, sunbeam (o ray of sunlight); raggio di luna, moonbeam (o ray of moonlight); raggio luminoso, ray of light; un debole raggio di luce, a faint gleam of light; fascio di raggi, pencil (o beam) of light; non abbiamo visto un raggio di sole in dieci giorni!, we haven't seen a ray of sunshine in ten days!3 (fis.) ray: raggio alfa, alpha ray; raggio catodico, cathode ray; raggio cosmico, cosmic ray; raggio infrarosso, infra-red ray; raggio positivo, positive (o canal) ray; raggio ultravioletto, ultraviolet ray // raggio X, X-ray: astronomia a raggi X, X-ray astronomy; cristallografia a raggi X, X-ray cristallography; diffrazione dei raggi X, X-ray diffraction; microscopio a raggi X, X-ray microscopy; spettro a raggi X, X-ray spectrum; tubo a raggi X, X-ray tube4 (mat.) radius*: raggio di un cerchio, radius of a circle; raggio del cerchio inscritto, inradius // (mecc.): raggio del cerchio primitivo, pitch circle radius; raggio del cono primitivo, cone distance; raggio di curvatura, radius of curvature5 ( distanza, portata) radius*; range: armi a corto, a lungo raggio, short-range, long-range weapons; entro un raggio di cinque miglia, within a radius (o a range) of five miles // un ampio raggio d'azione, a wide range of action // ad ampio, vasto raggio, large scale: la campagna elettorale sarà un'operazione a vasto raggio, the election campaign will be a large scale operation6 ( di ruota) spoke* * *1) mat. radius*2) (distanza)raggio d'azione — (di armi) range; fig. sphere of activity
a lungo, corto raggio — long-range, short-range
3) (di luce) beam, rayun raggio di sole — a ray of sunshine o of sunlight, a sunbeam
un raggio di speranza — fig. a ray o gleam of hope
4) med. (radiazione) X-ray, radiation U5) fis. ray6) (di ruota) spoke7) edil. wing•raggio luminoso — ray of light, light ray
- gi alfa — alpha rays
- gi cosmici — astr. cosmic rays
- gi gamma — gamma rays
* * *raggiopl. -gi /'raddʒo, dʒi/sostantivo m.1 mat. radius*2 (distanza) nel raggio di 5 km within a 5 km radius; raggio d'azione (di armi) range; fig. sphere of activity; a lungo, corto raggio long-range, short-range3 (di luce) beam, ray; un raggio di sole a ray of sunshine o of sunlight, a sunbeam; raggio di luna moonbeam; un raggio di speranza fig. a ray o gleam of hope5 fis. ray6 (di ruota) spoke7 edil. wingraggio laser laser beam; raggio luminoso ray of light, light ray; raggio ultravioletto ultraviolet ray; raggio vettore radius vector; - gi alfa alpha rays; - gi beta beta rays; - gi catodici cathode rays; - gi cosmici astr. cosmic rays; - gi gamma gamma rays; - gi infrarossi infrared rays; - gi X X-rays. -
2 catodico
* * ** * *catodicopl. -ci, - che /ka'tɔdiko, t∫i, ke/[ raggio] cathode attrib.; tubo catodico cathode-ray tube.
См. также в других словарях:
cathode rays — plural noun Streams of negatively charged particles (electrons) proceeding from the cathode of a vacuum tube • • • Main Entry: ↑cathode * * * cathode rays, the invisible streams of electrons from the cathode in a vacuum tube. When cathode rays… … Useful english dictionary
cathode rays — n. streams of electrons projected from the surface of a cathode: cathode rays produce X rays when they strike solids * * * … Universalium
cathode rays — n. streams of electrons projected from the surface of a cathode: cathode rays produce X rays when they strike solids … English World dictionary
cathode rays — Electron E*lec tron, n. [NL., fr. Gr. h lektron. See {Electric}.] 1. Amber; also, the alloy of gold and silver, called {electrum}. [archaic] [1913 Webster] 2. (Physics & Chem.) one of the fundamental subatomic particles, having a negative charge… … The Collaborative International Dictionary of English
cathode rays — katodiniai spinduliai statusas T sritis fizika atitikmenys: angl. cathode rays; Lenard rays vok. Katodenstrahlen, m; Lenard Strahlen, m rus. катодные лучи, m; лучи Ленарда, m pranc. faisceaux cathodiques, m; rayons cathodiques, m; rayons de… … Fizikos terminų žodynas
cathode rays — katodiniai spinduliai statusas T sritis chemija apibrėžtis Iš katodo viena kryptimi judančių ir elektrinio lauko pagreitintų elektronų srautas. atitikmenys: angl. cathode rays rus. катодные лучи … Chemijos terminų aiškinamasis žodynas
cathode rays — negative particles of electricity streaming out in a vacuum tube at right angles to the surface of the cathode and away from it irrespective of the position of the anode. They move in a straight line unless deflected by a magnet. By striking on… … Medical dictionary
Cathode ray — Cathode rays (also called an electron beam or e beam) are streams of electrons observed in vacuum tubes, i.e. evacuated glass tubes that are equipped with at least two electrodes, a cathode (negative electrode) and an anode (positive electrode)… … Wikipedia
cathode-ray tube — n a vacuum tube in which a beam of electrons is projected on a fluorescent screen to produce a luminous spot * * * a vacuum tube in which the cathode rays are accelerated as a beam to form luminous spots on a fluorescent screen … Medical dictionary
cathode ray tube — ► NOUN ▪ a high vacuum tube in which cathode rays produce a luminous image on a fluorescent screen, used in televisions and visual display units … English terms dictionary
cathode ray — a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam. [1875 80] * * * Stream of electrons leaving the negative electrode, or cathode, in an evacuated or gas filled discharge tube or emitted by a heated… … Universalium
