1. Small spiny-finned fish of coastal or brackish waters having a large head and elongated tapering body with ventral fins modified as a sucker
   "The gudgeon used its sucker-like fins to cling to rocks in the strong current";
   - goby
    
2. Small slender European freshwater fish often used as bait by anglers
   "He caught gudgeon to use as live bait";
   - Gobio gobio

Derived forms: gudgeons

Type of: cyprinid, cyprinid fish, percoid, percoid fish, percoidean

Part of: family Gobiidae, genus Gobio, Gobiidae, Gobio

Encyclopedia: Gudgeon, Gary