(mineralogy) A discredited pyrochlore mineral containing niobium, hydrogen, and oxygen.

A river in Aberdeenshire council area, north-eastern Scotland, which flows into the North Sea.

(mineralogy) An yttrium-bearing variety of gummite.

(mineralogy) gadolinite

(chemistry) A birefringent crystal, typically doped with neodymium and used as a gain medium in solid-state lasers.

plural of yttrium lithium fluoride

(Internet slang) Initialism of you're the asshole; used as a response to AITA (“am I the asshole?”).

plural of YTP