びわこおおなまずMeaningsNoun1. Lake Biwa catfish (Silurus biwaensis) (Usually kana)Other spellings琵び琶わ湖こ大おお鯰なまずUsually written in kanaOther readingsビワコオオナマズKanji in other spellings琵biwa琶lute湖lake大large鯰fresh-water catfish