gudgeon
1. [ noun ] (zoology) small spiny-finned fish of coastal or brackish waters having a large head and elongated tapering body having the ventral fins modified as a sucker
Synonyms: goby
Related terms: percoid_fish mudskipper Gobiidae
2. [ noun ] (zoology) small slender European freshwater fish often used as bait by anglers
Synonyms: Gobio_gobio
Related terms: cyprinid Gobio