xenotime
xe·no·time
noun
1.
a brown-to-yellow mineral that is a phosphate of yttrium in crystalline form
Origin
From Ancient Greek κενός (kenós, “vain”), τιμή (timḗ, “honour”), because the yttrium in the mineral was originally thought to be a new element.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.