pharmacokinetics

noun

phar·​ma·​co·​ki·​net·​ics ˌfär-mə-kō-kə-ˈne-tiks How to pronounce pharmacokinetics (audio)
-kō-kī-
plural in form but singular in construction
1
: the study of the bodily absorption, distribution, metabolism, and excretion of drugs
2
: the characteristic interactions of a drug and the body in terms of its absorption, distribution, metabolism, and excretion
pharmacokinetic adjective

Word History

First Known Use

1959, in the meaning defined at sense 1

Time Traveler
The first known use of pharmacokinetics was in 1959

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Cite this Entry

“Pharmacokinetics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pharmacokinetics. Accessed 10 Sep. 2025.

Medical Definition

pharmacokinetics

noun, plural in form but singular in construction
phar·​ma·​co·​ki·​net·​ics -kō-kə-ˈnet-iks, -kō-kī- How to pronounce pharmacokinetics (audio)
1
: the study of the bodily absorption, distribution, metabolism, and excretion of drugs
2
: the characteristic interactions of a drug and the body in terms of its absorption, distribution, metabolism, and excretion
evaluated the pharmacokinetics of a single theophylline doseThe Journal of the American Medical Association
pharmacokinetic adjective

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