a large swan, Cygnus buccinator, of W North America, having a white plumage and black bill
trumpeter swan in American English
US
a North American wild swan (Cygnus buccinator) with a loud, resonant cry
trumpeter swan in American English
noun
a large, pure-white, wild swan, Cygnus buccinator, of North America, having a sonorous cry: once near extinction, the species is now recovering
Word origin
[1700–10]This word is first recorded in the period 1700–10. Other words that entered Englishat around the same time include: camera, cirrus, envelope, hump, marquise