Word.ws English Dictionary

pegmatite

/ˈpɛɡmətaɪt/

pegmatite noun: a coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica.

pegmatite: a coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally...
Image: Zimbres, CC BY-SA 2.5, via Wikimedia Commons

Noun

pegmatite (countable and uncountable, plural pegmatites)

  1. A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica.

Forms of pegmatite

pluralpegmatites

Origin of pegmatite

From Ancient Greek πήγνυμι (pḗgnumi, “to attach, join”) + -ite

Words formed from pegmatite

Questions about pegmatite

What does pegmatite mean?
Pegmatite means a coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica.
What part of speech is pegmatite?
Pegmatite is a noun.
How do you pronounce pegmatite?
Pegmatite is pronounced /ˈpɛɡmətaɪt/.
What is the plural of pegmatite?
The plural of pegmatite is pegmatites.

Words near pegmatite in the dictionary

  1. pegless
  2. peglet
  3. peglets
  4. peglike
  5. pegloticase
  6. pegmatite
  7. pegmatites
  8. pegmatitic
  9. pegmatitization
  10. pegmatization
  11. pegmatize

Source and license

Adapted from Wiktionary: pegmatite (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:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-pegmatite.wav.

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