English noun: monotreme | |||
1. | monotreme (animal) the most primitive mammals comprising the only extant members of the subclass Prototheria | ||
Synonyms | egg-laying mammal | ||
Broader (hypernym) | prototherian | ||
Narrower (hyponym) | anteater, anteater, duck-billed platypus, duckbill, duckbilled platypus, echidna, echidna, Ornithorhynchus anatinus, platypus, spiny anteater, spiny anteater | ||