'Xenotime' definitions:

Definition of 'xenotime'

(from WordNet)
noun
A brown-to-yellow mineral that is a phosphate of yttrium in crystalline form

Definition of 'Xenotime'

From: GCIDE
  • Xenotime \Xen"o*time\, n. [Gr. xeno`timos honoring guests or strangers; xe`nos guest, stranger + timh` honor: cf. G. xenotim.] (Min.) A native phosphate of yttrium occurring in yellowish-brown tetragonal crystals. [1913 Webster]