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half-life (chemistry: time required for concentration to fall to half) noun [UK: hɑːf laɪf] [US: ˈhæf ˈlaɪf] | semividanoun |
half-life (time in physics) noun [UK: hɑːf laɪf] [US: ˈhæf ˈlaɪf] | periodo de semidesintegraciónnoun vida medianoun |