Fork-tailed a. Zool. Having the outer tail feathers longer than the median ones; swallow-tailed; -- said of many birds.
Fork-tailed flycatcher Zool., a tropical American flycatcher (Milvulus tyrannus).
Fork-tailed gull Zool., a gull of the genus Xema, of two species, esp. X. Sabinii of the Arctic Ocean.
Fork-tailed kite Zool., a graceful American kite (Elanoides forficatus); -- called also swallow-tailed kite.
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