Word Study
anaërobes (root: anaerobe)
CIDE DICTIONARY
anaërobes, n. pl. [NL. anaerobia; an-not + aëro- + Gr. life.].
Anaërobic bacteria. They are called facultative anaërobes when able to live either in the presence or absence of free oxygen; obligate anaërobes , or obligatory anaërobes , when they thrive only in its absence. [Webster 1913 Suppl.]
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