prototherian
About 0.00 uses per million words.
Meaning
- adjective Belonging or pertaining to the subclass Prototheria.
- noun Any of the egg-laying mammals of the subclass Prototheria; a monotreme.
Similar words
therian protoheterothecal telotrematous theropodous pteriomorph chelonian protohominid chirotherian primatal therophytic
Often followed by
mammals mammal
Save “prototherian” to learn later