simpsonite

noun simp·son·ite \ˈsim(p)sənˌīt\

Definition of simpsonite

plural

-s

  1. :  a mineral AlTaO4 consisting of an oxide of aluminum and tantalum in short hexagonal crystals

There's more!

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!
Already a subscriber? Log in.

Origin and Etymology of simpsonite

Edward S. Simpson †1939 Australian mineralogist + English -ite


Seen and Heard

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

conspicuously offensive

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!