Толковый словарь английского языка - crystal
Crystal
crystal
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1.
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 ...Толковый словарь английского языка Oxford English Reference
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