entozoan adj 1: of or relating to entozoa [syn: {endozoan}] 2: living within a living animal usually as a parasite; "entozoic worms" [syn: {entozoic}, {endozoic}] [ant: {epizoic}] n : any of various parasites that live in the internal organs of animals (especially intestinal worms) [syn: {endoparasite}, {entoparasite}, {entozoon}, {endozoan}] [also: {entozoa} (pl)]