The American Heritage® Dictionary of the English Language, 4th Edition
n. An orange-red to grayish yellow mixture of several uranium oxides, silicates, and salts occurring naturally in the oxidation and hydration of uraninite.
n. A yellow, amorphous mineral, a mixture of oxides and silicates of uranium, formed by weathering of pitchblende.
the GNU version of the Collaborative International Dictionary of English
n. A yellow amorphous mineral, essentially a hydrated oxide of uranium derived from the alteration of uraninite.
The Century Dictionary and Cyclopedia
n. An orange-yellow mineral consisting chiefly of hydrous oxid of uranium, produced by the alteration of uraninite.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a gummy orange mixture of uranium oxides and silicates occurring naturally in the hydration and oxidation of pitchblende
Word Usage
"The gummite, injecting funds into the economy in time of financial hardship GFC, from the Mining revenue is fine, but long term it creates an artificial bench mark which at some point usually goes pop."