pyrochlore Meaning, Definition & Usage

Pyr"o*chlore noun
Etymology
Pyro- + Gr. pale green.
Definitions
  1. (Min.) A niobate of calcium, cerium, and other bases, occurring usually in octahedrons of a yellowish or brownish color and resinous luster; -- so called from its becoming grass-green on being subjected to heat under the blowpipe.

Webster 1913