noun mam·mal \ˈma-məl\

: a type of animal that feeds milk to its young and that usually has hair or fur covering most of its skin

Full 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
mam·ma·li·an \mə-ˈmā-lē-ən, ma-\ adjective or noun

Examples of MAMMAL

  1. Human beings, dogs, and cats are all mammals.

Origin of MAMMAL

New Latin Mammalia, from Late Latin, neuter plural of mammalis of the breast, from Latin mamma breast
First Known Use: 1826

Other Mammals Terms

dormouse, dugong, gibbon, grimalkin, sable, stoat, ungulate, vole


noun mam·mal \ˈmam-əl\   (Medical Dictionary)

Medical Definition of MAMMAL

:  any of the higher vertebrate animals comprising the class Mammalia
mam·ma·li·an \mə-ˈmā-lē-ən, ma-\ adjective or noun


Next Word in the Dictionary: mammaliferousPrevious Word in the Dictionary: mammaAll Words Near: mammal
March 26, 2015
verdigris Hear it
A green deposit formed on some metals
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears