'Chemiotaxis' definitions:

Definition of 'Chemiotaxis'

From: GCIDE
  • Chemotaxis \Chem`o*tax"is\, n. Formerly also Chemiotaxis \Chem`i*o*tax"is\ [Chemical + Gr. ? arrangement, fr. ? to arrange.] (Biol.) The sensitiveness exhibited by small free-swimming organisms, as bacteria, zoospores of alg[ae], etc., to chemical substances held in solution. They may be attracted ({positive chemotaxis}) or repelled (negative chemotaxis). -- {Chem`o*tac"tic}, a. -- {Chem`o*tac"tic*al*ly}, adv. [Webster 1913 Suppl.] chemotherapeutic