Do you know ghouls from goblins and ghosts?
anaerobic an·aer·o·bic (ān'ə-rō'bĭk, -â-rō'bĭk)
Relating to or being an anaerobe.
Living without oxygen.
Occurring in the absence of oxygen or not requiring oxygen to live. Anaerobic bacteria produce energy from food molecules without the presence of oxygen. Compare aerobic.