Relating to an organism, such as a bird or mammal, capable of maintaining a stable body temperature independent of the environment.

of birds and mammals; having constant and relatively high body temperature

Any warm-blooded animal (mammal or bird that can maintain its body temperature within a narrow range, usually above that of its surroundings despite large variations in environmental temperature. It may be maintained continually or for limited periods only.

Having a constant internal temperature.

Able to produce one's own body heat (slang term is "warm-blooded").

Homeothermic animals maintain a constant body temperature. Birds and mammals are homeothermic.

Of, or pertaining to, the maintenance of a uniform temperature regardless of the temperature of the surroundings. In biology, synonymous with warm-blooded.