放射ほうしゃ Common Noun Irregular Transitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb radiation;emission ドップラー効果はまた、一般に光と放射エネルギーにおいても見られる。 The Doppler effect is also observed with light and with radiant energy in general.