Definition of mammal
: any of a class (Mammalia) of warm-blooded higher vertebrates (as placentals, marsupials, or monotremes) that nourish their young with milk secreted by mammary glands, have the skin usually more or less covered with hair, and include humans
mammalianplay \mə-ˈmā-lē-ən, ma-\ adjective or noun
Examples of mammal in a sentence
Human beings, dogs, and cats are all mammals.
Origin and Etymology of mammal
New Latin Mammalia, from Late Latin, neuter plural of mammalis of the breast, from Latin mamma breast
First Known Use: 1826
MAMMAL Defined for English Language Learners
Definition of mammal for English Language Learners
: a type of animal that feeds milk to its young and that usually has hair or fur covering most of its skin
MAMMAL Defined for Kids
Definition of mammal for Students
: a warm-blooded animal (as a dog, mouse, bear, whale, or human being) with a backbone that feeds its young with milk produced by the mother and has skin usually more or less covered with hair
Seen and Heard
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