1 definition found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Ruby \Ru"by\, n.; pl {Rubies}. [F. rubis (cf. Pr robi), LL
rubinus, robinus, fr L. rubeus red, reddish, akin to ruber.
See {Rouge}, {red}.]
1. (Min.) A precious stone of a carmine red color, sometimes
verging to violet, or intermediate between carmine and
hyacinth red. It is a red crystallized variety of
corundum.
Note: Besides the true or Oriental ruby above defined, there
are the balas ruby, or ruby spinel, a red variety of
spinel, and the rock ruby, a red variety of garnet.
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