Search Result for "radioactive dating":
Wordnet 3.0

NOUN (1)

1. measurement of the amount of radioactive material (usually carbon 14) that an object contains; can be used to estimate the age of the object; 



WordNet (r) 3.0 (2006):

radioactive dating
    n 1: measurement of the amount of radioactive material (usually
         carbon 14) that an object contains; can be used to estimate
         the age of the object