yttrium Chem.
(ˈɪtrɪəm)
[mod.L., f. yttria, after names of other metals in -ium.]
A rare metal of the cerium group, the base of the earth yttria. Symbol Y.
| 1822 Imison's Sci. & Art II. 93 The base of yttria has been supposed to be a metallic substance, which would receive the name of yttrium. 1866 Roscoe Elem. Chem. 8 The metals yttrium, erbium, indium, &c. have only as yet been met with in most minute quantities. |
Hence (or from
prec.)
yttrialite (
ˈɪtrɪəlaɪt)
Min., a silicate of thorium and the yttrium metals;
yttric (
ˈɪtrɪk)
a. Chem., related to or containing yttrium;
yˈttriferous a., containing or yielding yttrium;
yttrious (
ˈɪtrɪəs)
a., pertaining to or containing yttria;
yttrite (
ˈɪtraɪt)
Min., a synonym of
gadolinite.
| 1889 Amer. Jrnl. Sci. XXXVIII. 477 *Yttrialite. |
| 1860 Mayne Expos. Lex., Yttricus..*yttric. 1877 *yttriferous [see ytter]. |
| 1828–32 Webster, *Yttrious, pertaining to yttria; containing yttria; as, the yttrious oxyd of columbium. Cleaveland. |
| 1839 Ure Dict. Arts 541 Gadolinite; called also *Yttrite and Ytterbite. |