放ほう射しゃ性せい炭たん素そ年ねん代だい測そく定ていMeaningsNoun1. radiocarbon dating; carbon-14 datingKanji used放release射shoot性nature (of a person)炭charcoal素elementary年year代substitute測survey定defineComposed of放ほう射しゃ性せいradioactiveNoun炭たん素そcarbon (C)Noun年ねん代だいage; era; period; dateNoun測そく定ていmeasurementNoun