へびとんぼMeaningsNoun1. dobsonfly (esp. species Protohermes grandis) (Usually kana)Other spellings蛇へび蜻蛉とんぼUsually written in kanaOther readingsヘビトンボKanji in other spellings蛇snake蜻dragonfly蛉moon mothPitch accentへびとんぼ