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A white, yellow, or gray mineral, chiefly BaCO3.
[German Witherit, after William Withering (1741-1799), British physician.]
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) a white, grey, or yellowish mineral consisting of barium carbonate in orthorhombic crystalline form: occurs in veins of lead ore. Formula: BaCO3
[C18: named after W. Withering (1741–99), English scientist, who first described it]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a white to grayish mineral, barium carbonate, BaCO3, occurring in crystals and masses.
[1785–95; after W. Withering (1741–99), who first described it; see -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.