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D.O.

1.
Also, DO, d.o. direct object.
2.
Doctor of Optometry.
3.
Doctor of Osteopathy.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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D.O. in Medicine

D.O. abbr.
Doctor of Osteopathy

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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