Black swan

Noun

Definiciones

1.NounCygnus atratus, a swan with black plumage and a red bill which is endemic to Australia. .mw-parser-output .defdate{font-size:smaller}

2.NounSomething believed impossible or not to exist, especially if an example is subsequently found; also, something extremely rare; a rara avis.

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3.NounSomething believed impossible or not to exist, especially if an example is subsequently found; also, something extremely rare; a rara avis.

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4.NounA rare and hard-to-predict event with major consequences.

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