[three-spined stickleback] n (1769): a stickleback (Gasterosteus aculeatus) chiefly of fresh and brackish waters that typically has three dorsal spines
THREE-SPINED STICKLEBACK
Meaning of THREE-SPINED STICKLEBACK in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012