Why was "tantrum" trending last week?


[air-ohb] /ˈɛər oʊb/
an organism, especially a bacterium, that requires air or free oxygen for life (opposed to anaerobe).
1875-80; aer- + (micr)obe Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
British Dictionary definitions for aerobe


noun (pl) -obes, -obia (-ˈəʊbɪə)
an organism that requires oxygen for respiration Compare anaerobe
Word Origin
C19: from aero- + Greek bios life. Compare microbe
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
Cite This Source
aerobe in Medicine

aerobe aer·obe (âr'ōb')
An organism, such as a bacterium, requiring oxygen to live.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
aerobe in Science
An organism, such as a bacterium, that can or must live in the presence of oxygen. Compare anaerobe.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Encyclopedia Article for aerobe

an organism able to live and reproduce only in the presence of free oxygen (e.g., certain bacteria and certain yeasts). Organisms that grow in the absence of free oxygen are termed anaerobes; those that grow only in the absence of oxygen are obligate, or strict, anaerobes. Some species, called facultative anaerobes, are able to grow either with or without free oxygen. Certain others, able to grow best in the presence of low amounts of oxygen, are called microaerophiles.

Learn more about aerobe with a free trial on
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Difficulty index for aerobe

Some English speakers likely know this word

Word Value for aerobe

Scrabble Words With Friends

Nearby words for aerobe