An extinction angle is a term used in
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extinction angle — noun the angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized light • Syn: ↑angle of extinction • Hypernyms: ↑angle * * * noun : the angle through which a crystal is revolved from a definite… … Useful english dictionary
extinction — /ik stingk sheuhn/, n. 1. the act of extinguishing. 2. the fact or condition of being extinguished or extinct. 3. suppression; abolition; annihilation: the extinction of an army. 4. Biol. the act or process of becoming extinct; a coming to an end … Universalium
angle of extinction — noun the angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized light (Freq. 1) • Syn: ↑extinction angle • Hypernyms: ↑angle … Useful english dictionary
Extinction event — … Wikipedia
Extinction Crétacé-Tertiaire — Badlands près de Drumheller, Alberta, où l érosion a découvert à l air libre la limite K–T … Wikipédia en Français
angle d'extinction — užgesimo kampas statusas T sritis automatika atitikmenys: angl. angle of extinction vok. Löschwinkel, m rus. угол погасания, m pranc. angle d extinction, m … Automatikos terminų žodynas
angle of extinction — užgesimo kampas statusas T sritis automatika atitikmenys: angl. angle of extinction vok. Löschwinkel, m rus. угол погасания, m pranc. angle d extinction, m … Automatikos terminų žodynas
extinction — ex•tinc•tion [[t]ɪkˈstɪŋk ʃən[/t]] n. 1) the act of extinguishing 2) bio the state of being extinguished or extinct 3) bio the act or process of becoming extinct: the extinction of a species[/ex] 4) psl the reduction or loss of a conditioned… … From formal English to slang
Cretaceous–Tertiary extinction event — Artist s rendering of bolide impact Badlands nea … Wikipedia
Optical mineralogy — A petrographic microscope, which is an optical microscope fitted with cross polarizing lenses, a conoscopic lens, and compensators (plates of anisotropic materials; gypsum plates and quartz wedges are common), for crystallographic analysis.… … Wikipedia
