Anaerobia
Pronunciation : An*a`?r*o"bi*a
Part of Speech : An*a"?r*obes
Definition : Defn: Ana?robic bacteria. They are called facultative ana?robia when able to live either in the presence or absence of free oxygen; obligate, or obligatory, ana?robia when they thrive only in its absence.
Source : Webster's Unabridged Dictionary, 1913