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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 alfa
1 ( prima lettera dell'alfabeto greco) alpha2 (fig.) ( inizio) alpha: l'alfa e l'omega, the Alpha and Omega (o the beginning and the end o the first and the last); dall'alfa all'omega, from A to Z (o from beginning to end)3 (fis.) alpha: particella alfa, alpha particle; raggi alfa, alpha rays; alfa radioattività, alpha radioactivity; decadimento alfa, alpha decay.* * *['alfa] 1.sostantivo maschile e sostantivo femminile invariabile (lettera) alpha2.aggettivo invariabile [raggi, particelle] alpha••* * *alfa/'alfa/I m. e f.inv.(lettera) alpha[raggi, particelle] alphadall'alfa all'omega from A to Z.
См. также в других словарях:
Alpha rays — (Physics & Chem.) Rays of relatively low penetrating power emitted by radium and other radioactive substances, and shown to consist of positively charged {alpha particles} (helium nuclei) having enormous velocities but small masses. They are… … The Collaborative International Dictionary of English
alpha rays — alpha radiation or alpha rays noun (physics) A stream of alpha particles • • • Main Entry: ↑alpha * * * alpha rays or alpha radiation, Physics. a stream of alpha particles: »Alpha radiation consists of…high energy particles [that] have low… … Useful english dictionary
alpha rays — alpha rays. См. альфа излучение. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
alpha rays — alfa spinduliuotė statusas T sritis fizika atitikmenys: angl. alpha radiation; alpha rays; alpha particle radiation vok. Alphastrahlen, m; Alpha Strahlung, f; Alphastrahlung, f rus. альфа излучение, n; альфа лучи, m pranc. radiation alpha, f;… … Fizikos terminų žodynas
alpha rays — alfa spinduliai statusas T sritis chemija apibrėžtis Labai siauras alfa dalelių pluoštas. atitikmenys: angl. alpha rays rus. альфа лучи … Chemijos terminų aiškinamasis žodynas
alpha rays — alfa spinduliai statusas T sritis augalininkystė apibrėžtis Alfa dalelių srautas, skleidžiamas radioaktyviųjų medžiagų. atitikmenys: angl. alpha rays rus. альфа лучи … Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas
alpha rays — high speed helium nuclei that have been ejected from radioactive substances. Owing to their high velocity (one tenth that of light) their kinetic energy is so great that a single alpha particle produces a microscopic flash of light when it hits a … Medical dictionary
alpha rays — streams of alpha particles (Physics) … English contemporary dictionary
alpha particle — (Physics & Chem.) a particle emitted at high velocity from certain radioactive substances. It is identical to the helium nucleus, consisting of two protons and two neutrons. Rays of such particles are called {alpha rays}. [Webster 1913 Suppl.… … The Collaborative International Dictionary of English
Alpha particle — A tiny mass of material composed of two protons and two neutrons. Alpha particles do not travel very far from their radioactive source. They cannot pass through a piece of paper, clothes or even the layer of dead cells which normally protects the … Medical dictionary
Alpha-Strahlung — alfa spinduliuotė statusas T sritis fizika atitikmenys: angl. alpha radiation; alpha rays; alpha particle radiation vok. Alphastrahlen, m; Alpha Strahlung, f; Alphastrahlung, f rus. альфа излучение, n; альфа лучи, m pranc. radiation alpha, f;… … Fizikos terminų žodynas
