monotreme

From WikiWord, the free dictionary

/ˈmɒnətɹiːm/ English

Definitions

noun

A mammal that lays eggs and has a single urogenital and digestive orifice. Only the echidnas and platypuses are included in this group

adjective

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

Related words

Synonyms

1-treme monoaperturate egg-laying mammal prototherian monopisthocotylean monophage implacental eutypomyid platypus monodactylid monommid echidna duck mole monodelph monommatid monopleurid monodelphian stem mammal

Associated

marsupials mammal mammals eggs retreat records sex species australia modern

References