pillow basalt

noun

A distinct type of volcanic rock that forms when hot, molten basaltic lava erupts underwater.

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Meanings

nounpillow basalt (plural pillow basalts)

plural pillow basalts

  1. geographyA distinct type of volcanic rock that forms when hot, molten basaltic lava erupts underwater.
Cite this entry
APA

pillow basalt. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pillow%20basalt

MLA

“pillow basalt.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pillow%20basalt. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “pillow basalt,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pillow%20basalt.

Source: pillow basalt on Wiktionary, CC BY-SA 4.0.