放射年代 ほうしゃねんだい Meanings Noun radiometric age Kanji 放 release. Read as ホウ. 射 shoot. Read as シャ. 年 year. Read as ネン. 代 era. Read as ダイ. Words containing 放射年代 放射年代測定 (ほうしゃねんだいそくてい) radiometric dating Jinuma: Japanese Dictionary · Word lists