- 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. - Either one of two species of large, brilliantly colored
humming birds of the Topaza, of South America and the West Indies.
Definition
[ n.]