any of a group of minerals that are complex silicates that crystallize in thin, somewhat flexible, translucent or colored, easily separated layers, including muscovite, biotite, and lepidolite: mica is resistant to heat and electricity
Origin of micaModern Latin ; from L, a crumb, grain (; from Indo-European an unverified form (s)meik-, variant, variety of base an unverified form (s)mei-, to smear, rub over from source Old English smitte, a smudge): sense influenced, influence by micare, to shine, glitter ; from Indo-European an unverified form meik-, to flicker, blink
Any of a group of chemically and physically related aluminum silicate minerals, common in igneous and metamorphic rocks, characteristically splitting into flexible sheets used in insulation and electrical equipment.
Origin of micaLatin mīca, grain (perhaps influenced by micāre, to flash).
(countable and uncountable, plural micas)
From Latin mÄ«ca (“grain, crumb").