Dictionary.com

diorite

[ dahy-uh-rahyt ]
/ ˈdaɪ əˌraɪt /
Save This Word!

noun
a granular igneous rock consisting essentially of plagioclase feldspar and hornblende.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of diorite

1820–30; <French <Greek dior(ízein) to distinguish (see di-3, horizon) + French -ite-ite1

OTHER WORDS FROM diorite

di·o·rit·ic [dahy-uh-rit-ik], /ˌdaɪ əˈrɪt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use diorite in a sentence

British Dictionary definitions for diorite

diorite
/ (ˈdaɪəˌraɪt) /

noun
a dark coarse-grained igneous plutonic rock consisting of plagioclase feldspar and ferromagnesian minerals such as hornblende

Derived forms of diorite

dioritic (ˌdaɪəˈrɪtɪk), adjective

Word Origin for diorite

C19: from French, from Greek diorizein to distinguish (from dia- apart + horizein to define) + -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for diorite

diorite
[ dīə-rīt′ ]

A gray, coarse-grained plutonic rock. Diorite consists mainly of sodium-rich plagioclase and one or more mafic minerals such as biotite, hornblende, or pyroxene. It is the coarse-grained equivalent of andesite.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK