peridotite

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per·i·do·tite

 (pĕr′ĭ-dō-tīt′, pə-rĭd′ə-)
n.
Any of various coarse-grained igneous rocks that consist mainly of olivine and pyroxene and are believed to be a main constituent of the earth's mantle.

peridotite

(ˌpɛrɪˈdəʊtaɪt)
n
(Minerals) a dark coarse-grained ultrabasic plutonic igneous rock consisting principally of olivine
[C19: from French, from peridot]
peridotitic adj

per•i•do•tite

(ˈpɛr ɪˌdoʊ taɪt, pəˈrɪd əˌtaɪt)

n.
a coarsely granular igneous rock composed chiefly of olivine admixed with various other minerals.
[1895–1900; < French; see peridot, -ite1]
per`i•do•tit′ic (-ˈtɪt ɪk) adj.

peridotite

A coarse-grained igneous rock, mainly of olivine and pyroxene, such as dunite.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.peridotite - a dark coarse-grained igneous rock consisting principally of olivine
igneous rock - rock formed by the solidification of molten magma
kimberlite - a rare type of peridotite that sometimes contains diamonds; found in South Africa and Siberia