Meaning of onyx

on•yx

Pronunciation: (on'iks, ō'niks), [key]
— n.
  1. a variety of chalcedony having straight parallel bands of alternating colors. Cf.
  2. (not used technically) an unbanded chalcedony dyed for ornamental purposes.
  3. black, esp. a pure or jet black.
  4. a nail of a finger or toe.
—adj.
  1. black, esp. jet black.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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