aerotactic


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aer·o·tax·is

 (âr′ə-tăk′sĭs)
n.
Movement of an organism, especially a bacterium, toward or away from air or oxygen.

aer′o·tac′tic adj.

aerotactic

(ˌɛərəʊˈtæktɪk)
adj
of movement towards or away from oxygen