index patient

noun
plural index patients

Definition of index patient

: an individual affected with the first known case of an infectious disease or genetically transmitted condition or mutation in a population, region, or family : index case sense 2

First Known Use of index patient

1951, in the meaning defined above

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The first known use of index patient was in 1951

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Cite this Entry

“Index patient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/index%20patient. Accessed 16 Jan. 2021.

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index patient

noun

Medical Definition of index patient

: an individual affected with the first known case of an infectious disease or genetically transmitted condition or mutation in a population, region, or family : index case sense 2

called also index case-patient

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