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stickleback

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noun stick·le·back \ˈsti-kəl-ˌbak\

Definition of stickleback

plural stick·le·backs also stick·le·back

  1. :  any of a family (Gasterosteidae) of small scaleless bony fishes having two or more free spines in front of the dorsal fin and including marine, anadromous, and freshwater forms



Origin of stickleback

Middle English stykylbak, from Old English sticel goad + Middle English bak back; akin to Old English stician to stick


First Known Use: 15th century


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