thoria

play
noun tho·ria \ˈthȯr-ē-ə\

Definition of thoria

  1. :  a powdery white oxide of thorium ThO2 used especially as a catalyst and in crucibles and refractories and optical glass

Origin and Etymology of thoria

New Latin, from thorium + -a


First Known Use: circa 1841


Seen and Heard

What made you want to look up thoria? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to search out and expose misconduct

Get Word of the Day daily email!