chemotactic che·mo·tac·tic (kē'mō-tāk'tĭk, kěm'ō-)
Of or relating to chemotaxis.
|chemotaxis (kē'mō-tāk'sĭs, kěm'ō-) Pronunciation Key
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.