onyx

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noun on·yx \ˈä-niks\

Definition of onyx

  1. :  a translucent chalcedony in parallel layers of different colors

Origin and Etymology of onyx

Middle English oniche, onyx, from Anglo-French & Latin; Anglo-French, from Latin onych-, onyx, from Greek, literally, claw, nail — more at nail


First Known Use: 14th century


ONYX Defined for English Language Learners

onyx

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noun on·yx \ˈä-niks\

Definition of onyx for English Language Learners

  • : a kind of stone that has straight lines of usually white and black or white and brown and that is used especially in jewelry


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