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Os·ler(ōs′lər, ōz′-), Sir William 1849-1919.
Canadian-born British physician and educator. He was a revered and influential teacher who transformed medical education, especially during his tenure at Johns Hopkins Hospital in Maryland (1889-1905).
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.
(Biography) Sir William. 1849–1919, Canadian physician, pioneer of residency in medical training
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014