any parasitic animal or protozoan.
a of animals.
zooparasite zo·o·par·a·site (zō’ə-pār’ə-sīt’)
An animal parasite.
abnormal fear of animals. noun an unusual or morbid dread of animals n. 1901, from comb. form of Greek zoion “animal” (see zoo) + -phobia. Related: Zoophobic; zoophobe. zoophobia zo·o·pho·bi·a (zō’ə-fō’bē-ə) n. An abnormal fear of animals.
an individual animal or animallike organism in plankton.
the aggregate of animal or animallike organisms in , as protozoans. noun the animal constituent of plankton, which consists mainly of small crustaceans and fish larvae Compare phytoplankton n. 1901, from comb. form of Greek zoion “animal” (see zoo) + plankton. zooplankton (zō’ə-plāngk’tən) Plankton that consists of tiny animals, such as rotifers, copepods, and krill, […]
the study of the sounds and signals used in animal communication, as song in birds or tail-wagging in dogs.