幼若 ようじゃく Meanings な-adjective, Noun juvenile Kanji 幼 infant. Read as ヨウ. 若 young. Read as ジャク. Words containing 幼若 幼若ホルモン (ようじゃくホルモン) juvenile hormone 幼若化反応 (ようじゃくかはんのう) blastogenesis Jinuma: Japanese Dictionary · Word lists