three–spined stickleback

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noun \ˈthrē-ˈspīn(d)-\

Definition of three–spined stickleback

  1. :  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

1769

First Known Use of three–spined stickleback

1769


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feeling or affected by lethargy

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