che·mo·tax·is
(kē′mō-tăk′sĭs, kĕm′ō-) The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus.
What does the term chemotaxis mean?
: orientation or movement of an organism or cell in relation to chemical agents.
What are chemotactic factors?
The term chemotactic factor is used of molecules which stimulate the directional locomotion of cells in gradients. In many cases a formal demonstration of directional locomotion has not been made and the less specific term chemoattractant is often used instead.