Definitions for mammalˈmæm əl

This page provides all possible meanings and translations of the word mammal

Random House Webster's College Dictionary

mam•malˈmæm əl(n.)

  1. any warm-blooded vertebrate of the class Mammalia, characterized by a covering of hair on some or most of the body, a four-chambered heart, and nourishment of the newborn with milk from maternal mammary glands.

    Category: Zoology

Origin of mammal:

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

Princeton's WordNet

  1. mammal, mammalian(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

Kernerman English Learner's Dictionary

  1. mammal(noun)ˈmæm əl

    an animal, including humans, that bears live babies and feeds them on milk


  1. mammal(Noun)

    An animal of the class Mammalia, characterized by being warm-blooded, having hair and feeding milk to its young.

  2. mammal(Noun)

    A vertebrate with three bones in the inner ear and one in the jaw.

  3. Origin: Modern Latin Mammalia, coined 1758 by for the class of mammals, from neuter plural of mammalis, from mamma, perhaps cognate with mamma (mother).

Webster Dictionary

  1. Mammal(noun)

    one of the Mammalia


  1. Mammal

    Mammals are a clade of endothermic amniotes. Among the features that distinguish them from the other amniotes, the reptiles and the birds, are hair, three middle ear bones, mammary glands in females, and a neocortex. The mammalian brain regulates body temperature and the circulatory system, including the four-chambered heart. The mammals include the largest animals on the planet, the rorqual whales, as well as some of the most intelligent, such as elephants, some primates and some cetaceans. The basic body type is a four-legged land-borne animal, but some mammals are adapted for life at sea, in the air, in the trees, or on two legs. The largest group of mammals, the placentals, have a placenta which feeds the offspring during pregnancy. Mammals range in size from the 30–40 millimeter bumblebee bat to the 33-meter blue whale. The word "mammal" is modern, from the scientific name Mammalia coined by Carl Linnaeus in 1758, derived from the Latin mamma. All female mammals nurse their young with milk, which is secreted from special glands, the mammary glands. According to Mammal Species of the World, 5,702 species were known in 2006. These were grouped in 1,229 genera, 153 families and 29 orders. In 2008 the IUCN completed a five-year, 17,000-scientist Global Mammal Assessment for its IUCN Red List, which counted 5,488 accepted species at the end of that period. In some classifications, the mammals are divided into two subclasses: the Prototheria and the Theria, the latter composed of the infraclasses Metatheria and Eutheria. The marsupials comprise the crown group of the Metatheria and therefore include all living metatherians as well as many extinct ones; the placentals likewise constitute the crown group of the Eutheria.

British National Corpus

  1. Nouns Frequency

    Rank popularity for the word 'mammal' in Nouns Frequency: #2683

Translations for mammal

Kernerman English Multilingual Dictionary


any member of the class of animals (including man) in which the females feed the young with their own milk

Monkeys are mammals.

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