/ Dictionary / Index Z zebra swallowtail: Meaning and Definition of Find definitions for: ze'bra swal'lowtail Pronunciation: [key] a swallowtail butterfly, Papilio marcellus, having black and greenish-white stripes on the wings. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. zebrass zebra-tailed lizard Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language