n15275094
| type | n |
| lex_filenum | 28 |
| def | the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate) |
| Outgoing links | |
| Hypernym | time period, period of time, period |
| Incoming links | |
| Hyponym | time period, period of time, period |
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