crystal


crystal
n. & adj.
—n.
1 a a clear transparent mineral, esp. rock crystal. b a piece of this.
2 (in full crystal glass) a highly transparent glass; flint glass. b articles made of this.
3 the glass over a watch-face.
4 Electronics a crystalline piece of semiconductor.
5 Chem. a an aggregation of molecules with a definite internal structure and the external form of a solid enclosed by symmetrically arranged plane faces. b a solid whose constituent particles are symmetrically arranged.
—adj. (usu. attrib.) made of, like, or clear as crystal.
Phrases and idioms:
crystal ball a glass globe used in crystal-gazing. crystal class Crystallog. any of 32 categories of crystals classified according to their symmetry. crystal clear unclouded, transparent. crystal-gazing the process of concentrating one's gaze on a crystal ball supposedly in order to obtain a picture of future events etc. crystal lattice Crystallog. the regular repeating pattern of atoms, ions, or molecules in a crystalline substance. crystal set a simple early form of radio receiving apparatus with a crystal touching a metal wire as the rectifier. crystal system Crystallog. any of seven possible unique combinations of unit cells, crystal lattices, and symmetry elements of a crystal class.
Etymology: OE f. OF cristal f. L crystallum f. Gk krustallos ice, crystal

Useful english dictionary. 2012.

Look at other dictionaries:

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  • Crystal — Crys tal (kr[i^]s tal), n. [OE. cristal, F. cristal, L. crystallum crystal, ice, fr. Gr. kry stallos, fr. kry os icy cold, frost; cf. AS. crystalla, fr. L. crystallum; prob. akin to E. crust. See {Crust}, {Raw}.] 1. (Chem. & Min.) The regular… …   The Collaborative International Dictionary of English

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  • crystal — [kris′təl] n. [altered (modeled on L) < ME & OFr cristal, OE cristalla < L crystallum, crystal, ice < Gr krystallos < kryos: see CRUDE] 1. a) a clear, transparent mineral; esp., pure quartz b) a piece of such quartz cut in the form of …   English World dictionary

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  • Crystal — Crys tal, a. Consisting of, or like, crystal; clear; transparent; lucid; pellucid; crystalline. [1913 Webster] Through crystal walls each little mote will peep. Shak. [1913 Webster] By crystal streams that murmur through the meads. Dryden. [1913… …   The Collaborative International Dictionary of English

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  • crystal — O.E. cristal clear ice, clear mineral, from O.Fr. cristal (12c., Mod.Fr. crystal), from L. crystallus crystal, ice, from Gk. krystallos, from kryos frost, from PIE root *kru(s) hard, hard outer surface (see CRUST (Cf. crust)). Spelling adopted… …   Etymology dictionary

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