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half-life

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1. n. 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) Source: wordnet
2. n:100 n 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) Source: ecdict

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half time atoms disintegrate fall initial particular radioactive required something substance value

Word family

half-and-half half-and-half dressing half-and-halfs half-baked half-bastion half-blooded half-boot half-bottles half-bound half-bred half-breds half-breed

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