(Japanese mythology) son of 天忍穂耳 (Ama no Oshihomimi), husband of 木花開耶姫 (Ko no Hana no Sakuyabime), father of 火照 (Hoderi) and 彦火火出見 (Hikohohodemi); he was sent by his grandmother 天照 (Amaterasu) in his father's stead to rule the land of 葦原の中つ国 (Ashihara no Nakatsukuni) surrended by 大国主 (Ōkuninushi), bringing with him the 三種の神器 (Sanshu no Jingi), and eventually became great-grandfather of Emperor Jinmu

downstream / lower classes

organogenesis (formation and development of the organs from embryonic cells)

to mix one thing into another, typically in an undesirable way / to mingle, to become mixed, to get mixed, typically in an undesirable way