plural sticklebacks also stickleback
Definition of stickleback
: 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
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Merriam-Webster unabridged
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Time Traveler for stickleback
The first known use of stickleback was in the 15th century
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