English edit

Adjective edit

monotremous (not comparable)

  1. (zoology) Related to the monotremes.
    Synonym: monotrematous
    • 1868, Gerard Krefft, Notes on the Fauna of Tasmania, page 6:
      The monotremous section of the Implacentalia is represented as in Australia, by the well known Platypus, and by an Echidna or Ant-eater which appears to differ from our own in nothing but the shorter spines and more hairy fur.