ge·​no·​type | \ ˈjē-nə-ˌtīp How to pronounce genotype (audio) , ˈje- How to pronounce genotype (audio) \

Definition of genotype

 (Entry 1 of 2)

1 [ISV gen-] : type species
2 [ISV gene] : all or part of the genetic constitution of an individual or group — compare phenotype entry 1 sense 1


genotyped; genotyping; genotypes

Definition of genotype (Entry 2 of 2)

transitive verb

: to determine all or part of the genetic constitution of Because many Icelanders have now been genotyped, meaning their DNA has been analyzed at many sites spaced across the genome, the Decode researchers were able to pick a set of 40 sites where the DNA variations were diagnostic of geographic origin.— Nicholas Wade Genotyping of multiple B. pseudomallei colonies from several tissue sites from four patients … showed substantial genetic diversity within a single patient …— W. Joost Wiersinga

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Other Words from genotype


genotypic \ ˌjē-​nə-​ˈti-​pik How to pronounce genotype (audio) , ˌje-​ \ or less commonly genotypical \ ˌjē-​nə-​ˈti-​pi-​kəl How to pronounce genotype (audio) , ˌje-​ \ adjective
genotypic analysis
genotypically \ ˌjē-​nə-​ˈti-​pi-​k(ə-​)lē How to pronounce genotype (audio) , ˌje-​ \ adverb
genotypically similar strains


genotyping noun

Examples of genotype in a Sentence

Recent Examples on the Web: Noun In particular, a person’s phenotype, how someone physically presents, may not hold meaningful clues for their genotype, someone’s genetic make-up. Ashley Andreou, Scientific American, 7 June 2021 Entheon’s test looks at the individual’s HTR2A genotype, which can be a predictor for density of 5-HT2A, a serotonin receptor known as the main receptor to interact with classic psychedelic compounds such as LSD, psilocybin, DMT and mescaline. Natan Ponieman, Forbes, 27 Apr. 2021 While three of the team’s infections showed different variants indicating those infections came outside the team, one genotype raced through the club. Andrew Beaton, WSJ, 11 Dec. 2020 Both species harbor the same bacterial genotype, called 3I, that has been linked to human infections in medieval Europe. Kai Kupferschmidt, Science | AAAS, 11 Nov. 2020 Because genetic differences among the trees seem to determine which of the two groups of EM fungi colonizes them, the team will be careful to plant seedlings with the right genotype to attract the drought-resistant fungi. Elizabeth Pennisi, Science | AAAS, 26 Aug. 2020 Instead, breeders focus on the genotype and carry out a straightforward calculation to figure out the proportion of genetic material contributed by each ancestral line. Quanta Magazine, 31 July 2020 Imagine a population of individuals with genotypes AA, Aa and aa in the proportions 0.5, 0.2 and 0.3, respectively. Quanta Magazine, 14 Sep. 2017 Now they are increasingly distinguished by their specific genotype that reveals which of the panoply of genes that can make a cell cancerous have gone wrong in this one. The Economist, 12 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'genotype.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of genotype


1897, in the meaning defined at sense 1


1946, in the meaning defined above

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Time Traveler for genotype

Time Traveler

The first known use of genotype was in 1897

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Last Updated

15 Jun 2021

Cite this Entry

“Genotype.” Dictionary, Merriam-Webster, Accessed 24 Jun. 2021.

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More Definitions for genotype


ge·​no·​type | \ ˈjē-nə-ˌtīp How to pronounce genotype (audio) , ˈjen-ə- How to pronounce genotype (audio) \

Medical Definition of genotype

 (Entry 1 of 2)

2 : all or part of the genetic constitution of an individual or group — compare phenotype

Other Words from genotype

genotypic \ ˌjē-​nə-​ˈtip-​ik How to pronounce genotype (audio) , ˌjen-​ə-​ How to pronounce genotype (audio) \ also genotypical \ -​i-​kəl How to pronounce genotype (audio) \ adjective
genotypically \ -​i-​k(ə-​)lē How to pronounce genotype (audio) \ adverb


transitive verb
genotyped; genotyping

Medical Definition of genotype (Entry 2 of 2)

: to determine the genotype of DNA samples from the participants were genotyped for two common single-nucleotide polymorphisms (SNPs) in the coding region of the vitamin D–binding protein gene …— Camille E. Powe et al., The New England Journal of Medicine, 21 Nov. 2013

More from Merriam-Webster on genotype

Nglish: Translation of genotype for Spanish Speakers Encyclopedia article about genotype


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