Meaning of swallowtail

swal•low•tail

Pronunciation: (swol'ō-tāl"), [key]
— n.
  1. the tail of a swallow or a deeply forked tail like that of a swallow.
  2. any of several butterflies of the genus Papilio, characterized by elongated hind wings that resemble the tail of a swallow, as P. polyxenesCf.
  3. See
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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