gallein Hear it!

gallein definition

gal·lein (gal′ē in, gal′ēn)

noun

a violet dye, CHO, formed by heating pyrogallol with phthalic anhydride, used as an indicator and as a mordant dye

Etymology: gall(ic acid) + (phthal)ein

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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