[syn: tan, topaz]
The Collaborative International Dictionary of English v.0.48:
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.
2. (Zool.) 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
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.
False topaz. (Min.) See the Note under Quartz.
WordNet (r) 3.0 (2006):
n 1: a yellow quartz [syn: topaz, false topaz, common
2: a mineral (fluosilicate of aluminum) that occurs in crystals
of various colors and is used as a gemstone
3: a light brown the color of topaz [syn: tan, topaz]
Easton's 1897 Bible Dictionary:
Heb. pitdah (Ezek. 28:13; Rev. 21:20), a golden yellow or
"green" stone brought from Cush or Ethiopia (Job 28:19). It was
the second stone in the first row in the breastplate of the high
priest, and had the name of Simeon inscribed on it (Ex. 28:17).
It is probably the chrysolite of the moderns.