Obs

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Ob

[awb, ob; Russian awp]
noun
1.
a river in the W Russian Federation in Asia, flowing NW to the Gulf of Ob. 2500 miles (4025 km) long.
2.
an inlet of the Arctic Ocean. About 500 miles (800 km) long.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
Ob (Russian ɔpj)
 
n
a river in N central Russia, formed at Bisk by the confluence of the Biya and Katun Rivers and flowing generally north to the Gulf of Ob (an inlet of the Arctic Ocean): one of the largest rivers in the world, with a drainage basin of about 2 930 000 sq km (1 131 000 sq miles). Length: 3682 km (2287 miles)

OB
 
abbreviation for
1.  Old Boy
2.  outside broadcast

obs
 
abbreviation for
obsolete

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

OB abbr.
obstetrics

OBS abbr.
organic brain syndrome

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

ob definition

[ɑb]
  1. mod.
    obvious. : It's pretty ob that you are just trying to start something.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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American Heritage
Abbreviations & Acronyms
ob
obvious
OB
  1. obstetric

  2. obstetrics

  3. obstetrician

  4. off Broadway

OBS
organic brain syndrome
obs.
  1. obscene

  2. observation

  3. observatory

  4. obsolete

  5. obstetrics

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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