単たん孔こう類るい

noun

monotremes; Monotremata

Zoological term for the order of egg-laying mammals, including the platypus and echidnas. Used in scientific and educational contexts.

See also: カモノハシ目

• 単たん孔こう類るいにはカモノハシやハリモグラが含ふくまれる。

  Monotremes include the platypus and echidnas.