coot

Từ điển WordNet v3.1 - WordNet Dictionary

noun

slate-black slow-flying birds somewhat resembling ducks
• Hypernyms:
rail
• Hyponyms:
American coot, marsh hen, mud hen, water hen, Fulica americana,
Old World coot, Fulica atra
• Member Holonyms:
Fulica, genus Fulica, covert