Mica Definition

mīkə

noun

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.

Webster's New World

Synonyms:

Synonyms:
isinglass

Other Word Forms of Mica

Noun

Singular:

mica

Plural:

micas

Origin of Mica

Latin mīca grain (perhaps influenced by micāre to flash)

From American Heritage Dictionary of the English Language, 5th Edition
From Latin mÄ«ca (“grain, crumb").

From Wiktionary