\Swal"low-tailed`\, a.
1. Having a tail like that of a swallow; hence, like a
   swallow's tail in form; having narrow and tapering or
   pointed skirts; as, a swallow-tailed coat.

2. (Carp.) United by dovetailing; dovetailed.

{Swallow-tailed duck} (Zo["o]l.), the old squaw.

{Swallow-tailed gull} (Zo["o]l.), an Arctic gull ({Xema
   furcata}), which has a deeply forked tail.

{Swallow-tailed} {hawk or kite} (Zo["o]l.), the fork-tailed
   kite.

{Swallow-tailed moth} (Zo["o]l.), a European moth ({Urapteryx
   sambucaria}) having tail-like lobes on the hind wings.