three-spine stickleback

noun

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.

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Meanings

nounthree-spine stickleback (plural three-spine sticklebacks)

plural three-spine sticklebacks · alternative three-spined stickleback

  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.
Cite this entry
APA

three-spine stickleback. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/three-spine%20stickleback

MLA

“three-spine stickleback.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/three-spine%20stickleback. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “three-spine stickleback,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/three-spine%20stickleback.

Source: three-spine stickleback on Wiktionary, CC BY-SA 4.0.