half-life
n. (also half-life period) Chem. १ (the period of time in which the activity of a radioactive substance falls to half its original value) अर्धायुकाल (पु.) २ अर्ध आयुष्य (न.)
n. (also half-life period) Chem. १ (the period of time in which the activity of a radioactive substance falls to half its original value) अर्धायुकाल (पु.) २ अर्ध आयुष्य (न.)
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