what is chemotaxis
Noun. 1. chemotaxis-movement by a cell or organism in reaction to a chemical stimulus. taxis-a locomotor response toward or away from an external stimulus by a motile (and usually simple) organism.negative chemotaxis-movement away from a chemical stimulus.positive chemotaxis-movement toward a chemical stimulus.hemotaxis. n. 1. (Microbiology) the movement of a microorganism or cell in response to a chemical stimulus. (Ëki moÊËtaek moÊËtÃ¦k, sÉªs ËkÉm-). oÊ. n