| half-life |
half life: 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)
출처: wordnet.princeton.edu/perl/webwn
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| half-time |
involving half the standard or customary time for an activity; "he had two years of half-time training" for less than the standard number of hours; "he works part-time"
출처: wordnet.princeton.edu/perl/webwn
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| half pack |
a pack applied from the axillae to below the knees.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| half-life |
The time needed for one-half of a given amount of radioactive substance to decay.
출처: highered.mcgraw-hill.com/sites/0072549238/student_...
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| half-life |
The time required for the level of a substance in the body (eg, a drug or toxin) to be reduced by half.
출처: www.peteducation.com/dict_alpha_listing.cfm
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