n00992995
type | n |
lex_filenum | 04 |
def | geological dating based on the proportions of radioactive rubidium into its decay product strontium |
def | radioactive rubidium has a half-life of 47,000,000,000 years |
Outgoing links | |
Hypernym | dating, geological dating |
Incoming links | |
Hyponym | dating, geological dating |
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