Spherulite

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    a minute spherical crystalline body having a radiated structure, observed in some vitreous volcanic rocks, as obsidian and pearlstone.

Etymology

From spherule + -ite.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.