swallow-tailed, a.
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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. [1913 Webster]
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United by dovetailing; dovetailed. [1913 Webster]
Swallow-tailed duck (Zoöl.), the old squaw. -- Swallow-tailed gull (Zoöl.), an Arctic gull (Xema furcata), which has a deeply forked tail. -- Swallow-tailed hawk or Swallow-tailed kite (Zoöl.), the fork-tailed kite. -- Swallow-tailed moth (Zoöl.), a European moth (Urapteryx sambucaria) having tail-like lobes on the hind wings.