[ an-ok-see-uh, uh-nok- ]
/ ænˈɒk si ə, əˈnɒk- /


an abnormally low amount of oxygen in the body tissues; hypoxia.
the mental and physical disturbances that occur as a result of hypoxia.

Origin of anoxia

First recorded in 1930–35; an-1 + ox(ygen) + -ia
Related formsan·ox·ic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for anoxic


/ (ænˈɒksɪə) /


lack or absence of oxygen
a deficiency of oxygen in tissues and organsCompare hypoxia
Derived Formsanoxic, adjective

Word Origin for anoxia

C20: from an- + ox (ygen) + -ia
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

Word Origin and History for anoxic



1920, Modern Latin, from Greek an-, privative prefix, "not, without" (see an- (1)) + first two letters of oxygen + -ic. Anoxia "oxygen deficiency" is attested from 1931.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for anoxic


[ ăn-ŏksē-ə, ə-nŏk- ]


The absence or reduced supply of oxygen in inspired gases, arterial blood, or tissues.
Related formsan•oxic adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.