noun
large Australian swan having black plumage and a red bill
• Syn: ↑Cygnus atratus
• Hypernyms: ↑swan
• Member Holonyms: ↑Cygnus, ↑genus Cygnus
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noun : an Australian swan (Cygnus atratus) that is black with white wing tips and red bill
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black swan noun
1. A swan with black plumage and a red beak, native to Australia
2. Something rare or non-existent (old)
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Main Entry: ↑black
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black swan,
an Australian swan, black except for a bar of white on each wing, and a whitebanded scarlet bill.
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n. a mainly black swan with white flight feathers, which is common in Australia and Tasmania and has been introduced widely elsewhere. ● Cygnus atratus, family Anatidae
Useful english dictionary. 2012.