/ Dictionary / Index S swallowtail: Meaning and Definition of Find definitions for: swal•low•tail Pronunciation: (swol'ō-tāl"), [key] — n. the tail of a swallow or a deeply forked tail like that of a swallow. any of several butterflies of the genus Papilio, characterized by elongated hind wings that resemble the tail of a swallow, as P. polyxenesCf. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: swallowtail (Thesaurus) swallow dive swallow-tailed Related Content Daily Word Quiz: ounterfeit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language