gneiss
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Gneiss — rock Augen gneiss from Rio de Janeiro, Brazil … Wikipedia
gneiss — [ gnɛs ] n. m. • 1779; all. Gneis ♦ Géol., minér. Roche métamorphique à grain grossier, où alternent les plages claires (quartz, feldspath) et foncées (mica, amphibole). ● gneiss nom masculin (allemand Gneiss) Roche métamorphique foli … Encyclopédie Universelle
gneiss — gneiss; gneiss·oid; or·tho·gneiss; para·gneiss; gneiss·ic; gneiss·ose; … English syllables
Gneiss — (n[imac]s), n. [G.] (Geol.) A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende… … The Collaborative International Dictionary of English
gneiss|ic — «NY sihk», adjective. 1. like gneiss. 2. of or having to do with gneiss: »gneissic rocks … Useful english dictionary
gneiss — ġnèiss s.m.inv. TS petr. roccia metamorfica, molto comune, di colore grigio chiaro, costituita in prevalenza da quarzo, feldspati e miche, utilizzata come materiale da costruzione {{line}} {{/line}} VARIANTI: gnais, gneis. DATA: 1796. ETIMO: dal… … Dizionario italiano
gneiss — 1757, from Ger. Gneiss type of metamorphic rock, probably from M.H.G. gneist spark (so called because the rock glitters), from O.H.G. gneisto spark (Cf. O.E. gnast spark, O.N. gneisti) … Etymology dictionary
gneiss — [nīs] n. [Ger gneis < OHG gneisto, a spark, akin to ON gneisti, OE gnast: from the luster of certain of the components] a coarsegrained, metamorphic rock resembling granite, consisting of alternating layers of different minerals, such as… … English World dictionary
gneiss — gneissic, adj. /nuys/, n. a metamorphic rock, generally made up of bands that differ in color and composition, some bands being rich in feldspar and quartz, others rich in hornblende or mica. [1750 60; < G] * * * Medium to coarse grained… … Universalium
Gneiss — Orthogneiss de la zone de cisaillement de l Ailao Shan Fleuve Rouge en Chine. Source [1]. Le gneiss est une roche métamorphique contenant du quartz, du mica, des feldspaths plagioclases et parfois du feldspath alcalin, tous suffi … Wikipédia en Français
gneiss — [[t]naɪs[/t]] n. pet a metamorphic rock, generally made up of bands that differ in color and composition, some bands being rich in feldspar and quartz, others rich in hornblende or mica • Etymology: 1750–60; < G Gneis, ult. der. of OHG gneisto … From formal English to slang
