three-spined stickleback

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English[edit]

Alternative forms[edit]

Noun[edit]

three-spined stickleback (plural three-spined sticklebacks)

  1. Gasterosteus aculeatus, a small fish of coastal and inland waters of the Northern Hemisphere, that can make its spines erect when threatened, which makes it hard to swallow.

References[edit]

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