a piece of solid substance, such as quartz, with a regular shape in which plane faces intersect at definite angles, due to the regular internal structure of its atoms, ions, or molecules
2.
a single grain of a crystalline substance
3.
anything resembling a crystal, such as a piece of cut glass
4.
a.
a highly transparent and brilliant type of glass, often used in cut-glass tableware, ornaments, etc
b.
(as modifier)
a crystal chandelier
5.
something made of or resembling crystal
6.
crystal glass articles collectively
7. electronics
a.
a crystalline element used in certain electronic devices as a detector, oscillator, transducer, etc
b.
(as modifier)
crystal pick-up
crystal detector
8.
a transparent cover for the face of a watch, usually of glass or plastic
9. (modifier)
of or relating to a crystal or the regular atomic arrangement of crystals
crystal structure
crystal lattice
adjective
10.
resembling crystal; transparent
crystal water
Word origin
Old English cristalla, from Latin crystallum, from Greek krustallos ice, crystal, from krustainein to freeze