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Meaning of mica

mi•ca

Pronunciation: (mī'ku), [key]
— n.
  1. any member of a group of minerals, hydrous silicates of aluminum with other bases, chiefly potassium, magnesium, iron, and lithium, that separate readily into thin, tough, often transparent, and usually elastic laminae; isinglass.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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