Any of various warm-blooded vertebrate animals 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.ny 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. [1820–30; as singular of New Latin Mammalia, neuter pl. of Late Latin mammālis of the breast.
http://www.thefreedictionary.com/mammal
noun. A warm-blooded vertebrate animal of a class that is distinguished by the possession of hair or fur, females that secrete milk for the nourishment of the young, and (typically) the birth of live young. Example sentences. 1  It provides the growing young with everything it wants, and only mammals produce milk.2  The domestic animal is the first mammal known to die of the disease in Europe. 3  The male feeds the female while she incubates, catching small mammals and birds and bringing them back to the nest.xample sentences. 1  It provides the growing young with everything it wants, and only mammals produce milk. 2  The domestic animal is the first mammal known to die of the disease in Europe. 3  The male feeds the female while she incubates, catching small mammals and birds and bringing them back to the nest.
http://www.oxforddictionaries.com/definition/english/mammal
mammal. noun. 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.plural mammals). 1  An animal of the class Mammalia, characterized by being warm-blooded, having hair and feeding milk to its young. ( 2 paleontology) A vertebrate with three bones in the inner ear and one in the jaw.
http://www.yourdictionary.com/mammal
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. , of the breast, from Latin.ny 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. [1820–30; as singular of New Latin Mammalia, neuter pl. of Late Latin mammālis of the breast.
http://www.thefreedictionary.com/mammal
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. 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.
http://www.merriam-webster.com/dictionary/mammal
A warm-blooded vertebrate animal of a class that is distinguished by the possession of hair or fur, females that secrete milk for the nourishment of the young, and (typically) the birth of live young. Example sentences.1  It provides the growing young with everything it wants, and only mammals produce milk.2  The domestic animal is the first mammal known to die of the disease in Europe. 3  The male feeds the female while she incubates, catching small mammals and birds and bringing them back to the nest.xample sentences. 1  It provides the growing young with everything it wants, and only mammals produce milk. 2  The domestic animal is the first mammal known to die of the disease in Europe. 3  The male feeds the female while she incubates, catching small mammals and birds and bringing them back to the nest.
http://www.oxforddictionaries.com/definition/english/mammal
Any of various warm-blooded vertebrate animals 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.ny 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. [1820–30; as singular of New Latin Mammalia, neuter pl. of Late Latin mammālis of the breast.
http://www.thefreedictionary.com/mammals
Definition of MAMMAL for Kids. : 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. 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.
http://www.merriam-webster.com/dictionary/mammal
These are all mammals. These are all mammals. The definition of a mammal is a type of warm-blooded animal that breast feeds their babies and usually has hair. 1  An example of a mammal is a human.2  An example of a mammal is a whale.plural mammals). 1  An animal of the class Mammalia, characterized by being warm-blooded, having hair and feeding milk to its young. ( 2 paleontology) A vertebrate with three bones in the inner ear and one in the jaw.
http://www.yourdictionary.com/mammal
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. , of the breast, from Latin., breast; see mā- in Indo-European roots .].ny 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. [1820–30; as singular of New Latin Mammalia, neuter pl. of Late Latin mammālis of the breast.
http://www.thefreedictionary.com/mammals
what is the definition of a mammal
A mammal is a warm-blooded vertebrate animal of a class that is distinguished by the possession of hair or fur, females that secrete milk for the nourishment of the young, and the birth of live young.