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An orange-red to grayish yellow mixture of several uranium oxides, silicates, and salts occurring naturally in the oxidation and hydration of uraninite.
[German Gummit, from Gummi, gum, from Middle High German, from Medieval Latin, from Latin; see gum1.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Minerals) an orange or yellowish amorphous secondary mineral consisting of hydrated uranium oxides
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||gummite - a gummy orange mixture of uranium oxides and silicates occurring naturally in the hydration and oxidation of pitchblende|
mixture - (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)
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