feldspar Hear it!

feldspar definition

feld·spar (feld′spär′)

noun

any of several light-colored, hard, glassy, monoclinic or triclinic minerals made up of aluminum silicates with sodium, potassium, or calcium, found in all types of rock

Etymology: altered < Ger feldspath (now feldspat) < feld, field + spath, spar < IE base *spe-, long, flat board > spoon, spade

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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