peridotite

[ per-i-doh-tahyt, puh-rid-uh-tahyt ]

/ ˈpɛr ɪˌdoʊ taɪt, pəˈrɪd əˌtaɪt /

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noun

a coarsely granular igneous rock composed chiefly of olivine with an admixture of various other minerals.

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Origin of peridotite

From French, dating back to 1895–1900; see origin at peridot, -ite¹

OTHER WORDS FROM peridotite

per·i·do·tit·ic

[per-i-doh-tit-ik, puh-rid-uh-], /ˌpɛr ɪ doʊˈtɪt ɪk, pəˌrɪd ə-/, adjective

Words nearby peridotite

perididymis, perididymitis, peridium, peridiverticulitis, peridot, peridotite, peridot of Ceylon, periduodenitis, periencephalitis, perienteritis, periesophagitis

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use peridotite in a sentence

Peridotite and gabbro form much of the eastern peninsula (Banggai).
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5|Various
Into these sediments there are intruded certain peridotite dikes.
The Economic Aspect of Geology|C. K. Leith
Chromite is a common minor constituent of basic igneous rocks of the peridotite and pyroxenite type.
The Economic Aspect of Geology|C. K. Leith
In this locality the original rock is a peridotite, relatively low in nickel, which has been altered to serpentine.
The Economic Aspect of Geology|C. K. Leith

In Georgia the asbestos, which is anthophyllite, occurs in lenticular masses in peridotite associated with gneiss.
The Economic Aspect of Geology|C. K. Leith

British Dictionary definitions for peridotite

peridotite

/ (ˌpɛrɪˈdəʊtaɪt) /

noun

a dark coarse-grained ultrabasic plutonic igneous rock consisting principally of olivine

Derived forms of peridotite

peridotitic (ˌpɛrɪdəʊˈtɪtɪk), adjective

Word Origin for peridotite

C19: from French, from peridot

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 peridotite

peridotite

[ pĕr′ĭ-dō-tīt′, pə-rĭd′ə- ]

A coarse-grained igneous rock that consists mainly of olivine and pyroxene. It is believed to be one of the main constituent rocks of the Earth's mantle.