Monotreme meaning

mŏnə-trēm
Any of various egg-laying mammals of the order Monotremata of Australia and New Guinea, whose only living members are the platypus and the echidnas.
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Any of an order (Monotremata) of mammals, consisting of the platypus and the echidnas, which lay eggs and have a single opening for the digestive and urinary tracts and genital organs.
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Any of various egg-laying mammals of the order Monotremata of Australia and New Guinea, whose only living members are the platypus and the echidnas.
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Any of various mammals of the order Monotremata. Monotremes are the most primitive type of living mammal. They lay eggs and have a single opening (cloaca) for reproduction and elimination of wastes. The females have no teats but provide milk directly through the skin to their young. The only living monotremes are the duck-billed platypus, found in Australia and New Guinea, and the echidnas, found in New Guinea. Monotremes may have evolved already in the Jurassic Period, but the precise nature of their relationship to marsupials and placental mammals is disputed.
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(zoology) A mammal that lays eggs and has a single urogenital and digestive orifice. Only the echidnas and platypuses are included in this group.
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(palynology, of a pollen grain) Having a single trema, or aperture.
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Catatreme.
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Nomotreme.
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Pantotreme.
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Zonotreme.
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Origin of monotreme

  • From New Latin Monotrēmata order name mono– Greek trēma trēmat- perforation terə-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • mono- +"Ž -treme

    From Wiktionary