endoparasitism


en·do·par·a·site

E0136100 (ĕn′dō-păr′ə-sīt′)n. A parasite, such as a tapeworm, that lives within another organism.
en′do·par·a·sit′ic (-sĭt′ĭk) adj.en′do·par′a·sit·ism (-sĭ-tĭz′əm) n.

endoparasitism

(ˌɛndəʊˈpærəsaɪˌtɪzəm) n (Pathology) the condition of a parasite living inside a host