Monotreme Definition

mŏnə-trēm
noun
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.
Webster's New World
Synonyms:
  • egg-laying mammal
adjective

(palynology, of a pollen grain) Having a single trema, or aperture.

Wiktionary

Other Word Forms of Monotreme

Noun

Singular:
monotreme
Plural:
monotremes

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

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