Vermiculite meaning

vər-mĭkyə-līt
Any of a group of micaceous hydrated silicate minerals related to the chlorites and used in heat-expanded form as insulation and as a planting medium.
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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.
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(mineralogy) A hydrated silicate mineral which expands on heating; it is used in insulation and as a medium for planting.
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Origin of vermiculite

  • Latin vermiculus diminutive of vermis worm vermicular –ite

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

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

    From Wiktionary

Vermiculite Sentence Examples

  • The material is supplied to the contractor as a dry powder made up of cement and exfoliated vermiculite.

  • Typical sprays are based on gypsum or cement, with added vermiculite or mineral wool.

  • Fast plants grow best in a 1:1 mix of sieved moss peat and fine horticultural vermiculite.

  • Type Sowing Temp Cover Seed Advice Tender annual 20-25°C average layer vermiculite Sow 8 weeks prior to planting out.

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Words near vermiculite in the Dictionary