Vocabulary What does 遺伝子 (いでんし, idenshi) mean? 遺伝子 (いでんし, idenshi) means gene. Quick factsReadingいでんしRomajiidenshiPart of speechnoun 遺伝子いでんしidenshigene1noun geneKanji in this word遺leaving behind, bequeathing; lost伝transmit, convey子child