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[fee-nuh-tahyp] /ˈfi nəˌtaɪp/
noun, Genetics.
the observable constitution of an organism.
the appearance of an organism resulting from the interaction of the genotype and the environment.
Compare genotype.
Origin of phenotype
< German Phänotypus (1909); see pheno-, -type
Related forms
[fee-nuh-tip-ik] /ˌfi nəˈtɪp ɪk/ (Show IPA),
phenotypical, adjective
phenotypically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for phenotypes
  • It may, though, be because few links between these phenotypes and the genes themselves have yet been made.
  • Dispersal patterns, flowering time, other phenotypes are all possible targets of study.
  • They can then breed and cross-breed until they produce phenotypes that suit their fancy.
  • The result is that imperative, increased reproduction with preferred mates, which drives us phenotypes.
  • The canine genome clearly has the capacity for expression across a startlingly wide array of phenotypes.
  • However, said gene tree does not map well on to external phenotypes, so it's worthless for creating subspecies.
  • But remember that fossils rely on visible phenotypes, which may diverge from what genes tells us.
  • The blue line shows what you can infer from the plain information of parental phenotypes.
  • The resulting phenotypes do not represent this in any case.
  • For both genotypes and phenotypes, nature follows the rule of use it or lose it.
British Dictionary definitions for phenotypes


the physical and biochemical characteristics of an organism as determined by the interaction of its genetic constitution and the environment Compare genotype
Derived Forms
phenotypic (ˌfiːnəʊˈtɪpɪk), phenotypical, adjective
phenotypically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for phenotypes



"observable characteristics of an individual," 1911, from German phaenotypus (Wilhelm Johannsen, 1909); see pheno- + type (n.). Related: Phenotypic.

Online Etymology Dictionary, © 2010 Douglas Harper
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phenotypes in Medicine

phenotype phe·no·type (fē'nə-tīp')

  1. The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

  2. The expression of a specific trait, such as stature or blood type, based on genetic and environmental influences.

  3. An individual or group of organisms exhibiting a particular phenotype.

phe'no·typ'ic (-tĭp'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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phenotypes in Science
The physical appearance of an organism as distinguished from its genetic makeup. The phenotype of an organism depends on which genes are dominant and on the interaction between genes and environment. Compare genotype.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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phenotypes in Culture
phenotype [(fee-nuh-teyep)]

The outward appearance of an organism; the expression of a genotype in the form of traits that can be seen and measured, such as hair or eye color.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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