Home

Synset

the most primitive mammals comprising the only extant members of the subclass Prototheria
<noun.animal>

egg-laying mammal more info
monotreme more info
semantic pointers
hypernym
prototherian
hyponym
echidna, spiny anteater, anteater echidna, spiny anteater, anteater platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus