Monotreme — synonyms, definition
1. monotreme (Noun)
1 synonym
egg-laying mammal
1 definition
monotreme (Noun) — The most primitive mammals comprising the only extant members of the subclass Prototheria.
1 type of
prototherian
8 types
Ornithorhynchus anatinus anteater duck-billed platypus duckbill duckbilled platypus echidna platypus spiny anteater