• synonyms


noun, plural (especially collectively) thread·fish, (especially referring to two or more kinds or species) thread·fish·es.
  1. any of several jacks of the genus Alectis, especially A. ciliaris, having the front rays of the dorsal and anal fins greatly elongated.
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Origin of threadfish

First recorded in 1835–45; thread + fish
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018