noun
- animals that are not mammals; creatures belonging to other vertebrate or invertebrate classes
Usage: plural form; typically used in scientific or educational contexts
Examples
- Birds, reptiles, and fish are all nonmammalians.
- The zoo's collection includes both mammals and nonmammalians from around the world.
- Nonmammalians such as insects and amphibians make up the majority of animal species.
- Scientists study how nonmammalians adapt to different environments.
- The exhibit featured nonmammalians including snakes, turtles, and various bird species.