IPA: /ˌɛntoʊˈzoʊən/
KK: /ɛntoʊˈzoʊən/
A type of internal parasite that lives inside the body of another organism.
The entozoan can cause various health issues in its host.
Entozoan is formed from "ento-" (from Greek "entos", meaning within) and "zoon" (from Greek "zōon", meaning animal). The term refers to animals that live within another organism, typically as parasites.
Think of 'within' ('ento-') and 'animal' ('zoon') to remember that an entozoan is an animal that lives inside another.