luminosity
Look at other dictionaries:
Luminosity — has different meanings in several different fields of science.In photometry and color imagingIn photometry, luminosity is sometimes incorrectly used to refer to luminance, which is the density of luminous intensity in a given direction. The SI… … Wikipedia
Luminosity — Lu mi*nos i*ty, n. The quality or state of being luminous; luminousness. [1913 Webster] … The Collaborative International Dictionary of English
luminosity — (n.) 1630s, quality of being luminous, from Fr. luminosité or else a native formation from LUMINOUS (Cf. luminous) + ITY (Cf. ity). In astronomy, intrinsic brightness of a heavenly body (as distinguished from apparent magnitude, which diminishes… … Etymology dictionary
luminosity — ► NOUN ▪ luminous quality … English terms dictionary
luminosity — [lo͞o΄mənäs′ə tē] n. [ML luminositas] 1. the quality or condition of being luminous 2. pl. luminosities something luminous 3. brightness … English World dictionary
luminosity — [[t]lu͟ːmɪnɒ̱sɪti[/t]] 1) N UNCOUNT The luminosity of a star or sun is how bright it is. [TECHNICAL] For a few years its luminosity flared up to about 10,000 times the present day luminosity of the Sun. 2) N UNCOUNT You can talk about the… … English dictionary
luminosity — /looh meuh nos i tee/, n., pl. luminosities. 1. luminance (def. 2). 2. the quality of being intellectually brilliant, enlightened, inspired, etc.: The luminosity of his poetry is unequaled. 3. something luminous. 4. Astron. the brightness of a… … Universalium
luminosity — noun a) the state of being luminous, or a luminous object; brilliance or radiance b) the ratio of luminous flux to radiant flux at the same wavelength; the luminosity factor … Wiktionary
luminosity — skaistis statusas T sritis chemija apibrėžtis Šviečiančio ar šviesą sklaidančio paviršiaus šviesos ryškumas tam tikra kryptimi (Cd/m²). atitikmenys: angl. brightness; luminance; luminosity rus. яркость … Chemijos terminų aiškinamasis žodynas
luminosity — skaistis statusas T sritis fizika atitikmenys: angl. brightness; luminance; luminosity vok. Helligkeit, f; Leuchtdichte, f rus. яркость, f pranc. brillance, f; luminance, f … Fizikos terminų žodynas
luminosity — skaistis statusas T sritis ekologija ir aplinkotyra apibrėžtis Medžiagos skaidrumą apibūdinantis dydis, lygus spinduliuotės srauto, kritimo kryptimi perėjusio per vienetinio storio medžiagos sluoksnį, ir į tą medžiagą kritusio srauto dalmeniui.… … Ekologijos terminų aiškinamasis žodynas
