Topaz

Topaz
Topaz To"paz, n. [OE. topas, F. topaze, L. topazos, or topazion, a kind of precious stone, Gr. to`pazos, topa`zion; possibly akin to Skr. tap to glow (cf. {Tepid}). According to some, the name is from Topazos, a small island in the Red Sea, where the Romans obtained a stone which they called by this name, but which is the chrysolite of the moderns.] 1. (Min.) A mineral occurring in rhombic prisms, generally yellowish and pellucid, also colorless, and of greenesh, bluish, or brownish shades. It sometimes occurs massive and opaque. It is a fluosilicate of alumina, and is used as a gem. [1913 Webster]

2. (Zo["o]l.) Either one of two species of large, brilliantly colored humming birds of the genus {Topaza} ({Topaza pella} or {Topaza pyra}), of South America and the West Indies. [1913 Webster]

Note: The two tail feathers next to the central ones are much longer that the rest, curved, and crossed. The Throat is metallic yellowish-green, with a tint like topaz in the center, the belly is bright crimson, the back bright red. Called also {topaz hummer}. [1913 Webster]

{False topaz}. (Min.) See the Note under {Quartz}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • topaz — ► NOUN 1) a colourless, yellow, or pale blue precious stone. 2) a dark yellow colour. ORIGIN Greek topazos …   English terms dictionary

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