zooplankton
noun
- freely floating or weakly swimming typically minute aquatic protozoans and animals (such as copepods, rotifers, and arrow worms) or the eggs or larvae of aquatic animals (such as anemones, mollusks, and fish) : plankton composed of animals
Wiktionary
Pronunciation: /ˈzəʊ.ə.plaŋ(k).tən/ / /ˈzuː.ə.plaŋ(k).tən/ / /ˈzuː.plaŋ(k).tən/
noun
Etymology: From zoo- + plankton.
- Free-floating small protozoa, crustaceans (such as krill), etc. and the eggs and larvae from larger animals.