monotreme
Noun

monotreme (plural monotremes)

  1. (zoology) a mammal that lays eggs and has a single urogenital and digestive orifice. Only the echidnas and platypuses are included in this group
Translations Adjective

monotreme (not comparable)

  1. (palynology, of a pollen grain) Having a single trema, or aperture.
    Synonyms: 1-treme, monoaperturate



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