Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Chamberlin, Thomas Chrowder 1843-1928; U.S. geologist
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The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
, Thomas Chrowder 1843-1928.
American geologist who with the astronomer Forest Ray Moulton (1872-1952) proposed (1906) the planetismal hypothesis for the formation of the planets in the solar system.