Mammalia

Mammalia
The highest class of living organisms; it includes all the vertebrate animals (monotremes, marsupials, and placentals) that suckle their young, possess hair, and (except for the egg-laying monotremes) bring forth living young rather than eggs. [L. mamma, breast]

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Mam·ma·lia mə-'mā-lē-ə n pl the highest class of the subphylum Vertebrata comprising humans and all other animals that nourish their young with milk secreted by mammary glands, that have the skin usu. more or less covered with hair, a mandible articulating directly with the squamosal, a chain of small ear bones, a brain with four optic lobes, a muscular diaphragm separating the heart and lungs from the abdominal cavity, only a left arch of the aorta, warm blood containing red blood cells without nuclei except in the fetus, and embryos developing both an amnion and an allantois, and that except in the monotremes reproduce viviparously

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Mam·ma·lia (mə-malґe-ə) a class of warm-blooded vertebrate animals, including all that possess hair and suckle their young. It includes three major groups: placentals and marsupials, which are viviparous, and monotremes, which are oviparous.

Medical dictionary. 2011.

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  • Mammalia — Mam*ma li*a, n. pl. [NL., from L. mammalis. See {Mammal}.] (Zo[ o]l.) 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. [1913 Webster] Note: Mammalia… …   The Collaborative International Dictionary of English

  • Mammalĭa — (lat.), die Säugetiere (s. d.) …   Meyers Großes Konversations-Lexikon

  • Mammalia — Mammalĭa (lat.), Säugetiere …   Kleines Konversations-Lexikon

  • Mammalia — Mammalia, lat., Säugethiere; Mamaliolithen, Versteinerungen von vorweltlichen Säugethieren …   Herders Conversations-Lexikon

  • Mammalia — Mammalia, Säuger, ca. 6000 Arten umfassende, zu den Amnioten gehörende Klasse der Wirbeltiere. Die unabhängig von den Vögeln entwickelte Homoiothermie ging mit der Entwicklung von Haaren, Drüsen in der Haut und einer Steigerung des… …   Deutsch wörterbuch der biologie

  • Mammalia — 1773, from Modern Latin (Linnaeus), from neuter plural of L.L. mammalis, from mamma (see MAMMAL (Cf. mammal)) …   Etymology dictionary

  • Mammalia —   Mammalia Rango temporal: Triásico final Reciente …   Wikipedia Español

  • Mammalia — Säugetiere Systematik Überstamm: Neumünder (Deuterostomia) Stamm …   Deutsch Wikipedia

  • Mammalia — Mammifère Mammifères …   Wikipédia en Français

  • Mammalia — žinduoliai statusas T sritis ekologija ir aplinkotyra apibrėžtis Chordinių tipo stuburinių potipio gyvūnų klasė (Mammalia), kurią sudaro Mammalia4500 rūšių. Paplitę visame pasaulyje, gyvena sausumoje ir vandenyje, beveik visose ekologinėse nišose …   Ekologijos terminų aiškinamasis žodynas

  • mammalia — žinduoliai statusas T sritis ekologija ir aplinkotyra apibrėžtis Chordinių tipo stuburinių potipio gyvūnų klasė (Mammalia), kurią sudaro mammalia4500 rūšių. Paplitę visame pasaulyje, gyvena sausumoje ir vandenyje, beveik visose ekologinėse nišose …   Ekologijos terminų aiškinamasis žodynas

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