pyrolite

P3Y4R1O1L1I1T1E1

noun

A theoretical rock considered to be the best approximation of the composition of Earth's upper mantle, generally considered to be one part tholeiitic basalt and three parts dunite.

Scrabble 13
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Meanings

nounpyrolite (countable and uncountable, plural pyrolites)

plural pyrolites

  1. countableuncountableA theoretical rock considered to be the best approximation of the composition of Earth's upper mantle, generally considered to be one part tholeiitic basalt and three parts dunite.

Origin

From pyro- + -lite.

Full word history & related roots →
Cite this entry
APA

pyrolite. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/pyrolite

MLA

“pyrolite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pyrolite. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “pyrolite,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/pyrolite.

Source: pyrolite on Wiktionary, CC BY-SA 4.0.