Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

diorite

play
noun di·o·rite \ˈdī-ə-ˌrīt\

Definition of diorite

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

di·o·rit·ic play \ˌdī-ə-ˈri-tik\ adjective


Origin of diorite

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


First Known Use: 1826


Learn More about diorite


Seen and Heard

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

February 14, 2016

to hug and kiss another person

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

16.96 pounds 2.2 pounds 196.5 pounds 100 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ