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

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


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

Keep scrolling for more

Other Words from genotype


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

Examples of genotype in a Sentence

Recent Examples on the Web: Noun

Since most organisms have two inherited sets of genes, one contributed by each parent, an individual plant might have AA or Aa or aa to make up what’s called its genotype. Quanta Magazine, "Are Genes Selfish or Cooperative?," 14 Sep. 2017 What will the proportion of the three genotypes in the first generation be? Quanta Magazine, "Solution: ‘Are Genes Selfish or Cooperative?’," 29 Sep. 2017 In genetics, a mosaic refers to two or more cell populations with differing genotypes (pieces of genetic material) in one individual. David Grossman, Popular Mechanics, "The Infamous CRISPR Baby Scientist Is Missing," 3 Dec. 2018 Normally, the spread of genotypes within a population is slow, as each individual carrier will pass it on to only half its offspring, and the chance that two carriers will end up mating are small. John Timmer, Ars Technica, "Gene drive used to turn all female mosquitos sterile," 27 Sep. 2018 Investigators’ recent break in the case came after sending in 25-year-old DNA evidence from the crime scene to Parabon NanoLabs to create a genotype of the killer who got away. Jared Gilmour, miamiherald, "Teacher was raped and murdered in 1992. Gum left at a school just caught the killer, Pa. cops say," 27 June 2018 And according to a phylogenetic tree mapping the evolutionary relationship between the genomes, one of the nine major genotypes circulating today was the product of an ancient recombination between two strains of the hepatitis B virus. Kiona N. Smith, Ars Technica, "Genghis Khan’s Mongol horde probably had rampant Hepatitis B," 11 May 2018 Previous studies have hinted at as much based on inferences from modern genotypes, notes Jonathan Pritchard, a population geneticist at Stanford University in Palo Alto, California, who wasn’t involved in the work. Michael Price, Science | AAAS, "Iceland’s founding fathers underwent a rapid, 1000-year genetic shift," 31 May 2018 None of the analyses currently incorporate genotype-environment interactions like those found in the schizophrenia study. Sharon Begley, STAT, "Schizophrenia ‘risk genes’ are not so risky if the mother’s pregnancy was healthy," 28 May 2018

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.

See More

First Known Use of genotype


1897, in the meaning defined at sense 1


1946, in the meaning defined above

Keep scrolling for more

Learn More about genotype

Dictionary Entries near genotype








Statistics for genotype

Last Updated

11 Jul 2019

Look-up Popularity

Time Traveler for genotype

The first known use of genotype was in 1897

See more words from the same year

Keep scrolling for more

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 genotypic (audio) , ˌjen-​ə-​ How to pronounce genotypic (audio) \ also genotypical \ -​i-​kəl How to pronounce genotypical (audio) \ adjective
genotypically \ -​i-​k(ə-​)lē How to pronounce genotypically (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

Keep scrolling for more

More from Merriam-Webster on genotype

Rhyming Dictionary: Words that rhyme with genotype

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

Comments on genotype

What made you want to look up genotype? Please tell us where you read or heard it (including the quote, if possible).


to complain fretfully

Get Word of the Day daily email!

Test Your Vocabulary

What's that Smell?! Quiz

  • wide eyed dog smelling rose
  • Someone who is hircine smells like a:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!