Mammalia

Mam`ma´li`a

n. pl.

1.

(Zool.) The highest class of Vertebrata. The young are nourished for a time by milk, or an analogous fluid, secreted by the mammary glands of the mother.

Thesaurus

Noun

1.

Mammalia - warm-blooded vertebrates characterized by mammary glands in the female class Mammalia young mammal - any immature mammal Craniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; birds; mammals mammal, mammalian - 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 Prototheria, subclass Prototheria - echidnas; platypus Pantotheria, subclass Pantotheria - generalized extinct mammals widespread during the Jurassic; commonly conceded to be ancestral to marsupial and placental mammals Metatheria, subclass Metatheria - pouched animals Eutheria, subclass Eutheria - all mammals except monotremes and marsupials Ungulata - in former classifications a major division of Mammalia comprising all hoofed mammals; now divided into the orders Perissodactyla (odd-toed ungulates) and Artiodactyla (even-toed ungulates) Unguiculata - in former classifications a major division of Mammalia comprising mammals with nails or claws; distinguished from hoofed mammals and cetaceans class - (biology) a taxonomic group containing one or more orders