Pleochroism — is an optical phenomenon in which grains of a rock appear to be different colors when observed at different angles under a petrographic microscope. Pleochroism is caused by the double refraction of light by a colored gem or crystal. Light of… … Wikipedia
Pleochroism — Ple*och ro*ism, n. [Gr.? mor? + ? color.] (Crystallog.) The property possessed by some crystals, of showing different colors when viewed in the direction of different axes. [1913 Webster] … The Collaborative International Dictionary of English
pleochroism — [plē äk′rō iz΄əm] n. [< PLEO + Gr chrōs, color (see CHROOUS) + ISM] the property of some minerals of absorbing selectively various wavelengths of light and of displaying different colors when looked at in the directions of the different… … English World dictionary
pleochroism — /plee ok roh iz euhm/, n. the property of certain crystals of exhibiting different colors when viewed from different directions under transmitted light. Cf. dichroism (def. 1), trichroism. [1855 60; PLEOCHRO(IC) + ISM] * * * ▪ optics (from Greek … Universalium
pleochroism — pleochroizmas statusas T sritis chemija apibrėžtis Medžiagos spalvos priklausomybė nuo šviesos bangų sklidimo krypties ir poliarizacijos. atitikmenys: angl. pleochroism; pleochromatism; polychroism; polychromatism rus. плеохроизм … Chemijos terminų aiškinamasis žodynas
pleochroism — kristalų daugiaspalviškumas statusas T sritis fizika atitikmenys: angl. pleochroism; pleochromatism; polychroism vok. Pleochroismus, m; Polychroismus, m rus. плеохроизм, m pranc. pléochroïsme, m; polychroïsme, m … Fizikos terminų žodynas
pleochroism — noun the phenomenon of different colors appearing when certain crystals are viewed from different directions • Hypernyms: ↑optical phenomenon • Hyponyms: ↑dichroism, ↑trichroism * * * plēˈäkrəˌwizəm noun ( s) … Useful english dictionary
pleochroism — noun Etymology: International Scientific Vocabulary pleochroic, from pleio + Greek chrōs skin, color Date: 1857 the property of a crystal of showing different colors when viewed by light polarized in different directions • pleochroic adjective … New Collegiate Dictionary
pleochroism — noun the optical phenomenon in some coloured, transparent crystals (such as tourmaline) in which the colour is different in different directions See Also: dichroism, trichroism … Wiktionary
pleochroism — SYN: pleochromatism. * * * ple·och·ro·ism plē äk rə .wiz əm n the property of a crystal of showing different colors when viewed by light that vibrates parallel to different axes pleo·chro·ic .plē ə krō ik adj * * * pleo·chro·ism (pleґo… … Medical dictionary