Dictionary.com

Muscovite

[ muhs-kuh-vahyt ]
/ ˈmʌs kəˌvaɪt /
Save This Word!

noun

a native or inhabitant of Moscow.
a native or inhabitant of the Grand Duchy of Muscovy.
Also called white mica .(lowercase)Mineralogy. common light-colored mica, essentially KAl3Si3O10(OH)2, used as an electrical insulator.
Archaic. a Russian.

adjective

of, relating to, or characteristic of Moscow, Muscovy, or the Muscovites.

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.

Origin of Muscovite

First recorded in 1545–55; Muscov(y) + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for Muscovite (1 of 2)

muscovite
/ (ˈmʌskəˌvaɪt) /

noun

a pale brown, or green, or colourless mineral of the mica group, found in plutonic rocks such as granite and in sedimentary rocks. It is used in the manufacture of lubricants, insulators, paints, and Christmas "snow". Composition: potassium aluminium silicate. Formula: KAl 2 (AlSi 3)O 10 (OH) 2 . Crystal structure: monoclinicSee also mica
C19: from the phrase Muscovy glass, an early name for mica

British Dictionary definitions for Muscovite (2 of 2)

Muscovite
/ (ˈmʌskəˌvaɪt) /

noun

a native or inhabitant of Moscow

adjective

an archaic word for Russian
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for Muscovite

muscovite
[ mŭskə-vīt′ ]

A usually colorless to yellow or pale-gray mica. Muscovite is a monoclinic mineral and is found in igneous rocks, such as granites and pegmatites, metamorphic rocks, such as schists and gneisses, and in many sedimentary rocks. Chemical formula: KAl2(AlSi3)O10(OH)2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Learning At Home Just Got Easier!