IPA: //ˈzuːoʊˌplæŋktər//
KK: /ˈzuːoʊˌplæŋktər/
A small animal that lives in water and is part of the zooplankton, which are tiny organisms that float in the water.
The ocean is full of various zooplankters that play a crucial role in the aquatic food chain.
Zooplankter → It is formed from "zoo-" (from Greek "zōion", meaning animal) and "plankter" (from Greek "planktos", meaning wandering or drifting). The word describes a drifting or wandering animal, specifically referring to small aquatic organisms that float in water bodies.
Think of 'animal' ('zoo-') that is 'drifting' ('planktos') in the water — that's what a zooplankter is.