| NOM | time | període de semidesintegració, semivida | 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) |
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| Sentit | 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). | |
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| Sinònim | semivida | |
| General | etapa, període | An amount of time |
| Anglès | half life, half-life | |
| Espanyol | periodo de semidesintegración, semivida | |
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