volcanic glass

noun

A natural glass produced by the cooling of molten lava, or a liquid fraction of it, too rapidly to permit crystallization.

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Meanings

nounvolcanic glass (countable and uncountable, plural volcanic glasses)

plural volcanic glasses

  1. countableuncountableA natural glass produced by the cooling of molten lava, or a liquid fraction of it, too rapidly to permit crystallization.
Cite this entry
APA

volcanic glass. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/volcanic%20glass

MLA

“volcanic glass.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/volcanic%20glass. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “volcanic glass,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/volcanic%20glass.

Source: volcanic glass on Wiktionary, CC BY-SA 4.0.