noun🔗ShareNeunaugenAny long slender primitive eel-like freshwater and saltwater fish of the order Petromyzontiformes, having a sucking mouth with rasping teeth but no jaw."Fishermen worry about lampreys attaching to and harming other fish in the Great Lakes. "Fischer machen sich Sorgen, dass sich Neunaugen an andere Fische in den Großen Seen anheften und diese schädigen.fishanimalbiologyorganismChat with AIVocabulary GamePractice Reading