chemotactic
adjective
che·mo·tac·tic ˌkē-mō-ˈtak-tik 
: involving, inducing, or exhibiting chemotaxis
chemotactically
ˌkē-mō-ˈtak-ti-k(ə-)lē
adverb 
Word History
Etymology
chemo- + -tactic, after German chemotaktisch, formed after Chemotaxis chemotaxis
Note: See note at chemotaxis.
First Known Use
1888, in the meaning defined above
Medical Definition
chemotactic
adjective
che·mo·tac·tic -ˈtak-tik
: involving, inducing, or exhibiting chemotaxis