bladdernose

Từ điển WordNet v3.1 - WordNet Dictionary

noun

medium-sized blackish-grey seal with large inflatable sac on the head;
of Arctic and northern Atlantic waters
• Syn:
hooded seal, Cystophora cristata
• Hypernyms:
earless seal, true seal, hair seal
• Member Holonyms:
Cystophora, genus Cystophora