(of an organism or tissue) requiring the presence of air or free oxygen for life.
pertaining to or caused by the presence of oxygen.
of or utilizing the principles of aerobics: aerobic exercises; aerobic dances.

1880–85; aerobe + -ic

aerobically, adverb
nonaerobic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
aerobic (ɛəˈrəʊbɪk)
1.  (of an organism or process) depending on oxygen
2.  of or relating to aerobes
3.  designed for or relating to aerobics: aerobic shoes; aerobic dances

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

"living only in the presence of oxygen," 1884, (after Fr. aérobie, coined 1863 by Louis Pasteur) from Gk. aero- "air" (combining form) + bios "life" (see bio-).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

aerobic aer·o·bic (â-rō'bĭk)

  1. Living or occurring only in the presence of oxygen, as certain microorganisms.

  2. Of or relating to aerobes.

  3. Relating to or used in aerobics.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
aerobic   (â-rō'bĭk)  Pronunciation Key 
Occurring in the presence of oxygen or requiring oxygen to live. In aerobic respiration, which is the process used by the cells of most organisms, the production of energy from glucose metabolism requires the presence of oxygen. Compare anaerobic.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
aerobic [(air-oh-bik)]

In biology, a descriptive term for organisms that require the presence of oxygen to live. (Compare anaerobic.)

Note: Aerobic exercise, such as running, swimming, and doing calisthenics for an extended time, is designed to improve the body's use of oxygen.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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