1 three-spined stickleback | Definition of three-spined stickleback
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three-spined stickleback

noun
\ ˈthrē-ˈspīn(d)- How to pronounce three-spined stickleback (audio) \

Definition of three-spined stickleback

: a stickleback (Gasterosteus aculeatus) chiefly of fresh and brackish waters that typically has three dorsal spines

— called also three-spine stickleback

Illustration of three-spined stickleback

Illustration of three-spined stickleback

First Known Use of three-spined stickleback

1769, in the meaning defined above

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More from Merriam-Webster on three-spined stickleback

Britannica.com: Encyclopedia article about three-spined stickleback

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