diorite

noun
di·​o·​rite | \ ˈdī-ə-ˌrīt How to pronounce diorite (audio) \

Definition of diorite

: a granular crystalline igneous rock commonly of acid plagioclase and hornblende, pyroxene, or biotite

Other Words from diorite

dioritic \ ˌdī-​ə-​ˈri-​tik How to pronounce dioritic (audio) \ adjective

First Known Use of diorite

1826, in the meaning defined above

History and Etymology for diorite

French, irregular from Greek diorizein to distinguish, from dia- + horizein to define — more at horizon

Keep scrolling for more

Learn More about diorite

Statistics for diorite

Look-up Popularity

Time Traveler for diorite

The first known use of diorite was in 1826

See more words from the same year

More from Merriam-Webster on diorite

Britannica.com: Encyclopedia article about diorite

Comments on diorite

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

WORD OF THE DAY

friendly or mild

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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