peridotite
UK/ˈpɛɹ.ɪ.dəˌtaɪt/US/pəˈɹɪd.əˌtaɪt/
peridotite noun: a rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earth's mantle.

Noun
peridotite (countable and uncountable, plural peridotites)
- A rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earth's mantle.
- Varieties of peridotite are distinguished by their mineral composition; for example, dunite is a peridotite which is virtually all olivine, and a dense, dark green in colour.2004, Richard Fortey, The Earth, Folio Society, published 2011, page 60
Forms of peridotite
| plural | peridotites |
|---|
Origin of peridotite
From peridot + -ite.
Words formed from peridotite
Questions about peridotite
- What does peridotite mean?
- Peridotite means a rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earth's mantle.
- What part of speech is peridotite?
- Peridotite is a noun.
- How do you pronounce peridotite?
- Peridotite is pronounced /ˈpɛɹ.ɪ.dəˌtaɪt/ (UK).
- What is the plural of peridotite?
- The plural of peridotite is peridotites.
Words near peridotite in the dictionary
Source and license
Adapted from Wiktionary: peridotite (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “peridotite.” Word.ws, https://word.ws/peridotite. Based on Wiktionary, CC BY-SA 4.0.
