three-spined stickleback(redirected from Unarmored threespine stickleback)
Also found in: Thesaurus.
Related to Unarmored threespine stickleback: Gasterosteus aculeatus williamsoni
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|Noun||1.||three-spined stickleback - of rivers and coastal regions |
stickleback, prickleback - small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research
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