縦断的研究 じゅうだんてきけんきゅう Meanings Noun longitudinal study Kanji 縦 vertical. Read as ジュウ. 断 sever. Read as ダン. 的 -like. Read as テキ. 研 research. Read as ケン. 究 investigate. Read as キュウ. Jinuma: Japanese Dictionary · Word lists