gummite Hear it!

gummite definition

gum·mite (gum′īt′)

noun

a soft, yellowish or reddish-brown mixture of minerals containing uranium, lead, and thorium

Etymology: so named (1868) by J. D. Dana < L gummi, gum + -ite

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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