Based on the Random House Dictionary, © Random House, Inc. 2012.
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| a chattering or flighty, light-headed person. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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boehmite
white and relatively soft basic aluminum oxide [AlO(OH)] that is a common mineral in bauxite, in which it forms disseminated grains or pealike masses. It is especially abundant in European bauxites, sometimes as the main constituent; bauxites from the Western Hemisphere commonly contain only a few percent boehmite. Deposits exist at Gant and Baratka, Hung.; Stangenrode, Ger.; Ayr, Scot.; and Recoux, Pereille, and Cadarcet, France. Boehmite is dimorphous (identical in composition but differing in crystal structure) with diaspore; its crystals have orthorhombic symmetry. For detailed physical properties, see oxide mineral (table)
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