pharmacogenetics

noun

phar·​ma·​co·​ge·​net·​ics ˌfär-mə-kō-je-ˈne-tiks How to pronounce pharmacogenetics (audio)
plural in form but singular in construction
: the study of how genetic differences among individuals cause varied responses to a drug

Word History

First Known Use

1960, in the meaning defined above

Time Traveler
The first known use of pharmacogenetics was in 1960

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Cite this Entry

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

Medical Definition

pharmacogenetics

noun, plural in form but singular in construction
phar·​ma·​co·​ge·​net·​ics -jə-ˈnet-iks How to pronounce pharmacogenetics (audio)
: the study of how genetic differences among individuals cause varied responses to a drug
The major development that is helping to individualize therapy is the continuing advance of pharmacogenetics and its application to clinical problems.Marcus M. Reidenberg, The Journal of the American Medical Association
pharmacogenetic adjective
pharmacogenetic tests
pharmacogenetic variation
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