chemotaxis

che·mo·tax·is  (km-tkss, km-)

n.

The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus.

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chemo·tactic (-tktk) adj.

chemo·tacti·cal·ly adv.

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chemotaxis  (km-tkss, km-)

The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus. Bacteria exhibit chemotaxis when they move toward a source of nutrients.

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chemotaxis

the property of some plants and animals of moving toward or away from certain chemicals.

See also: Motion

Thesaurus

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