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Related to facultative aerobe: Aerobic bacteria
a microorganism that lives and grows in the presence of free oxygen. adj., adj aero´bic.
facultative aerobe one that can live in the presence of oxygen, but does not require it.
obligate aerobe one that cannot live without oxygen.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
facultative aerobeA microorganism normally reproducing without free oxygen (an anaerobe) which can sometimes grow in the presence of oxygen.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005