Meaning of FERGUSONITE in English

FERGUSONITE

/ferr"geuh seuh nuyt'/ , n.

a rare-earth mineral, yttrium columbate and tantalate, found in pegmatites.

[ 1820-30; named after R. Ferguson, 19th-century Scottish physician; see -ITE 1 ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .