ythrowe
-p. p. of throw.

ytterbic
-pertaining to, or derived from, ytterbium; containing ytterbium.

ytterbium
-a rare element of the boron group, sometimes associated with yttrium or other related elements, as in euxenite and gadolinite. symbol yb; provisional atomic weight 173.2. cf. yttrium.

yttria
-the oxide, y2o3, or earth, of yttrium.

yttric
-pertaining to, derived from, or containing, yttrium.

yttriferous
-bearing or containing yttrium or the allied elements; as, gadolinite is one of the yttriferous minerals.

yttrious
-same as yttric.

yttrium
-a rare metallic element of the boron
-aluminium group, found in gadolinite and other rare minerals, and extracted as a dark gray powder. symbol y. atomic weight, 89.

yttro
-cerite
-a mineral of a violet
-blue color, inclining to gray and white. it is a hydrous fluoride of cerium, yttrium, and calcium.

yttro
-columbite
-alt. of yttro
-tantalite

yttro
-tantalite
-a tantalate of uranium, yttrium, and calcium, of a brown or black color.