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half-life ['hɑ:flaɪf]
gen.	emivita f
agric.	semiperiodo m
chem.	mezza vita
nat.sc.	semivita f; emivita biologica; tempo di dimezzamento
nucl.pow.	Semi-vita m; periodo di dimezzamento; periodo radioattivo; tempo di dimezzamento radioattivo
half-life The time required for one-half the atoms of a given amount of radioactive material to undergo radioactive decay ['hɑ:flaɪf]
environ.	tempo di dimezzamento
half life ['hɑːflaɪf]
med.	mezza vita; tempo di semi trasformazione
English thesaurus
half-life ['hɑ:flaɪf]
abbr., med.	T 1/2
metrol.	The time span necessary for the atoms of a nuclide to disintegrate by one half
USA	The time required for the activity of a given radioactive species to decrease to half of its initial value due to radioactive decay (JP 3-11)
Half-Life ['hɑ:flaɪf]
med.	The time it takes a drug to lose half its original concentration or activity after being introduced into the body. Drug half-life is considered when determining drug dosing.

half-life: 52 phrases in 11 subjects

Agriculture	2
Chemistry	3
Earth sciences	1
General	19
Health care	4
Measuring instruments	1
Medical	7
Natural sciences	4
Nuclear and fusion power	4
Radiology	2
Technology	5