three-spined stickleback

threespine stickleback

[three-spahyn]
noun
a widely distributed stickleback, Gasterosteus aculeatus, occurring in marine, brackish, or fresh waters throughout the northern hemisphere.
Also, three-spined stickleback.


Origin:
1890–95

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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