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1. The time required for half the nuclei of a radioactive substance to lose their activity by undergoing radioactive decay. 2. In biology and pharmacology, the time required by the body, tissue, or organ to metabolize or inactivate half the amount of a substance taken in. This is an important consideration in determining the proper amount and frequency of drug administration.
Venes, Donald, editor. "Half-life." Taber's Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Taber's Online, www.tabers.com/tabersonline/view/Tabers-Dictionary/741816/all/half_life.
Half-life. In: Venes D, ed. Taber's Medical Dictionary. 23rd ed. F.A. Davis Company; 2017. https://www.tabers.com/tabersonline/view/Tabers-Dictionary/741816/all/half_life. Accessed June 25, 2019.
Half-life. (2017). In Venes, D. (Ed.), Taber's Medical Dictionary. Available from https://www.tabers.com/tabersonline/view/Tabers-Dictionary/741816/all/half_life
Half-life [Internet]. In: Venes D, editors. Taber's Medical Dictionary. F.A. Davis Company; 2017. [cited 2019 June 25]. Available from: https://www.tabers.com/tabersonline/view/Tabers-Dictionary/741816/all/half_life.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - half-life
ID - 741816
ED - Venes,Donald,
BT - Taber's Medical Dictionary
UR - https://www.tabers.com/tabersonline/view/Tabers-Dictionary/741816/all/half_life
PB - F.A. Davis Company
ET - 23
DB - Taber's Online
DP - Unbound Medicine