mammal
noun
mam·mal
| \ ˈma-məl
\
\
Definition of mammal
: any of a class (Mammalia) of warm-blooded higher vertebrates (such 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
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Other Words from mammal
mammalian
\ mə-ˈmā-lē-ən
, ma- \
adjective or noun
, ma- \
adjective or noun
mammal-like
\ ˈma-məl-ˌlīk
\
or less commonly mammallike
adjective
\
or less commonly mammallike
adjective
mammal-like behavior
mammallike reptiles
Examples of mammal in a Sentence
Human beings, dogs, and cats are all mammals.
Recent Examples on the Web
Its curator of mammals, Michael Frushour, tells The Blade newspaper the zoo is talking about switching to reticulated giraffes. — USA TODAY, "Cat burglar, prison bats, USS Arizona Memorial: News from around our 50 states," 4 Sep. 2019 Enough of the winged mammals emerge each evening to cloud the evening sky. — David Ferry, SFChronicle.com, "Bats’ nightly ‘fly out’ is spectacle to behold in Sacramento," 20 Aug. 2019 Research out of the University of Southampton in the UK suggests the median size of mammals will shrink by a quarter as humans continue to pave over untamed habitats, for example. — Doug Johnson, Quartz, "Elephants and whales could give us the cure for cancer—unless we keep killing them," 14 Aug. 2019 The bacteria is found in the intestines of mammals, including humans. — Kristi Belcamino, Twin Cities, "E. coli outbreak closes beaches on Minneapolis’ Lake Nokomis," 13 Aug. 2019 Paying modest stipends, Choudhary has enlisted the people of the river, often the poorest of the poor, to become citizen wardens of the sea mammals. — Paul Salopek, National Geographic, "India’s holiest river is drying up," 9 Aug. 2019 And yet there are few reliable ways of tracing all those connections in the brains of large mammals. — Matthew Shaer, New York Times, "Scientists Are Giving Dead Brains New Life. What Could Go Wrong?," 2 July 2019 The country is home to several rare species, including Persian leopards, Baluchistan bears and other mammals. — Ben Guarino, Washington Post, "Environmentalists filmed Iran’s vanishing cheetahs. Now they could be executed for spying.," 25 Aug. 2019 The country is home to several rare species, including Persian leopards, Baluchistan bears, and other mammals. — Ben Guarino, BostonGlobe.com, "Environmentalists filmed Iran’s cheetahs. They could be executed for spying.," 25 Aug. 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mammal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for mammal
mammal
noun
English Language Learners Definition of mammal
: a type of animal that feeds milk to its young and that usually has hair or fur covering most of its skin
See the full definition for mammal in the English Language Learners Dictionary
mammal
noun
mam·mal
| \ ˈma-məl
\
\
Kids Definition of mammal
: 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
mammal
noun
mam·mal
| \ ˈmam-əl
\
\
Medical Definition of mammal
: any of the higher vertebrate animals comprising the class Mammalia
Other Words from mammal
mammalian
\ mə-ˈmā-lē-ən, ma-
\
adjective or noun
\
adjective or noun
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