Source : WordNet®

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)]