- zoologyThe part of biology relating to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct.
- zoonA distinct organism.
- zoonosisAn animal disease, such as rabies or anthrax, that can be transmitted to humans.
- zoo-animal
- zooeciumOne of the cells or tubes which enclose the feeding zooids of Bryozoa.
- -zoonForming nouns indicating individual members of taxonomic groups whose names end in -zoa.
- zoophagaAn artificial group comprising various carnivorous and insectivorous animals.
- zoothomeA number of coral polyps on a branch of coral.
- zooticrelating to animals or obtained from animal substances
- zooxanthellaAny of the yellow pigmentary particles, or minute corpuscles of yellow coloring matter, found in certain radiolarians.