swallowtail
- n a man's full-dress jacket with two long tapering tails at the back
- Dressed in customary black hunting cap and swallowtail coat, the husband of Britain's Princess Anne began the first stage of the grueling three-day equestrian event under a hard .
- But our representative appears in a plain black swallowtail.
- Next down are the species that compose the ecosystems: swallowtail butterflies, moray eels, people.