Vermiculite Definition

vər-mĭkyə-līt
noun
Any of a number of very soft, monoclinic, hydrous silicate minerals resulting usually from alterations of mica and occurring in tiny, leafy scales that expand greatly when heated: used for insulation, water adsorption, etc.
Webster's New World

Other Word Forms of Vermiculite

Noun

Singular:
vermiculite
Plural:
vermiculites

Origin of Vermiculite

  • Latin vermiculus, wormlet for its fibrous nature and tendency to expand into worm-like shapes when heated

    From Wiktionary

  • Latin vermiculus diminutive of vermis worm vermicular –ite

    From American Heritage Dictionary of the English Language, 5th Edition

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vermiculite