放ほう射しゃ性せい元げん素そMeaningsNoun1. radioelement; radioactive elementKanji used放release射shoot性nature (of a person)元origin素elementaryPitch accentほうしゃせいげんそComposed of放ほう射しゃ性せいradioactiveNoun元げん素そelement; chemical element; (classical) element (e.g. earth, water, air, fire)Noun