yttro-columbite Meaning, Definition & Usage

Yt`tro-co*lum"bite, Yt`tro-tan"ta*lite noun (Also<
  • Yttro-columbite
  • Yttro-tantalite
)
Definitions
  1. (Min.) A tantalate of uranium, yttrium, and calcium, of a brown or black color.

Webster 1913