adjective.
Living or occurring in the absence of free oxygen.
adjective.
Of or relating to anaerobes.
The Century Dictionary and Cyclopedia
Pertaining to or having the characters of anaërobia.
the GNU version of the Collaborative International Dictionary of English
adjective.
Not requiring air or oxygen for life; -- applied especially to those microbes to which free oxygen is unnecessary; anaërobiotic; -- opposed to aërobic.
adjective.
Relating to, or like, anaërobies; anaërobiotic.