vermiculite
Definition from Wiktionary, a free dictionary
[edit] English
[edit] Etymology
Latin vermiculus, wormlet for its fibrous nature and tendency to expand into worm-like shapes when heated
[edit] Noun
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Singular |
Plural |
vermiculite (uncountable)
- (mineralogy) A hydrated silicate mineral which expands on heating; it is used in insulation and as a medium for planting