Ob

[ awb, ob; Russian awp ]
/ ɔb, ɒb; Russian ɔp /

noun

a river in the W Russian Federation in Asia, flowing NW to the Gulf of Ob. 2500 miles (4025 km) long.
Gulf of, an inlet of the Arctic Ocean. About 500 miles (800 km) long.

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Definition for obs (2 of 2)

obs.

or Obs.

observation.
observatory.
obsolete.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for obs

British Dictionary definitions for obs (1 of 3)

obs

abbreviation for

obsolete

British Dictionary definitions for obs (2 of 3)

Ob
/ (Russian ɔpj) /

noun

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)

British Dictionary definitions for obs (3 of 3)

OB

abbreviation for British

Old Boy
outside broadcast
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for obs (1 of 2)

OBS

abbr.

organic brain syndrome

Medical definitions for obs (2 of 2)

OB

abbr.

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