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Halbwertszeit f =, -en
gen.	emivita f
earth.sc.	durata di vita media
environ.	tempo di dimezzamento
nat.sc.	emivita biologica; semivita f
nucl.phys.	tempo di dimezzamento radioattivo
PhysikalischeHalbwertszeit f
gen.	periodo di dimezzamento; periodo radioattivo

Halbwertszeit: 5 phrases in 2 subjects

Chemistry	1
Health care	4