Definition of monodelphous in English:

monodelphous

Pronunciation /ˌmɒnə(ʊ)ˈdɛlfəs/

adjective

rare Zoology
  • Of, belonging to, or characteristic of mammals whose females have a single uterus and vagina (i.e. all mammals other than marsupials and monotremes).

Origin

Mid 19th century; earliest use found in Charles Lyell (1797–1875), geologist. From monodelph + -ous.