monotreme

Etymology

From mono- + -treme.

noun

  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.

adj

  1. (palynology, of a pollen grain) Having a single trema, or aperture.
    Nomotreme fern and moss spores are monotreme. 1952, G. Erdtman, Pollen Morphology and Plant Taxonomy, published 1986, page 548

Attribution / Disclaimer All definitions come directly from Wiktionary using the Wiktextract library. We do not edit or curate the definitions for any words, if you feel the definition listed is incorrect or offensive please suggest modifications directly to the source (wiktionary/monotreme), any changes made to the source will update on this page periodically.