egg-laying_mammal | ||
1. | [ noun ] (zoology) the most primitive mammals comprising the only extant members of the subclass Prototheria | |
Synonyms: | monotreme | |
Related terms: | prototherian platypus echidna echidna | |
egg-laying_mammal | ||
1. | [ noun ] (zoology) the most primitive mammals comprising the only extant members of the subclass Prototheria | |
Synonyms: | monotreme | |
Related terms: | prototherian platypus echidna echidna | |