Dictionary
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. polyxenes (black swallowtail). Cf.
spicebush swallowtail, tiger swallowtail, zebra swallowtail.
3. See
tail coat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.