Mammal definition |Dictionary.com

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mammal

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6 dictionary results for: Mammal

Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

mam·mal

[mam-uh

l] Pronunciation Key

–noun

any vertebrate of the class Mammalia, having the body more or less covered with hair, nourishing the young with milk from the mammary glands, and, with the exception of the egg-laying monotremes, giving birth to live young.

[Origin: 1820–30; as sing. of NL Mammalia neut. pl. of LL mammālis of the breast. See mamma², -al¹

]

—Related forms

mam·mal·like, adjective

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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American Heritage Dictionary - Cite This Source - Share This

mam·mal (mām'əl) Pronunciation Key
n. Any of various warm-blooded vertebrate animals of the class Mammalia, including humans, characterized by a covering of hair on the skin and, in the female, milk-producing mammary glands for nourishing the young.

[From Late Latin mammālis, of the breast, from Latin mamma, breast; see mā-² in Indo-European roots.]

mam·ma'li·an (mā-mā'lē-ən) adj. & n.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

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Online Etymology Dictionary - Cite This Source - Share This
mammal

1826, anglicized form of Mod.L. Mammalia (1773), coined 1758 by Linnaeus for the class of mammals, from neut. pl. of L.L. mammalis "of the breast," from L. mamma "breast," perhaps cognate with mamma.

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WordNet - Cite This Source - Share This

mammal
noun
any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk

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The American Heritage Science Dictionary - Cite This Source - Share This

mammal (mām'əl) Pronunciation Key

Any of various warm-blooded vertebrate animals of the class Mammalia, whose young feed on milk that is produced by the mother's mammary glands. Unlike other vertebrates, mammals have a diaphragm that separates the heart and lungs from the other internal organs, red blood cells that lack a nucleus, and usually hair or fur. All mammals but the monotremes bear live young. Mammals include rodents, cats, dogs, ungulates, cetaceans, and apes.

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Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Mammal

Mam"mal\, n.; pl. Mammals. [L. mammalis belonging to the breast, fr. mamma the breast or pap: cf. F. mammal.] (Zo["o]l.) One of the Mammalia.

Age of mammals. See under Age, n., 8.

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