[ 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


phe·no·typ·ic [fee-nuh-tip-ik], /ˌfi nəˈtɪp ɪk/, phe·no·typ·i·cal, adjectivephe·no·typ·i·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for phenotype

/ (ˈfiːnəʊˌtaɪp) /


the physical and biochemical characteristics of an organism as determined by the interaction of its genetic constitution and the environmentCompare genotype

Derived forms of phenotype

phenotypic (ˌfiːnəʊˈtɪpɪk) or phenotypical, adjectivephenotypically, 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

Medical definitions for phenotype

[ fēnə-tīp′ ]


The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.
The expression of a specific trait, such as stature or blood type, based on genetic and environmental influences.
An individual or group of organisms exhibiting a particular phenotype.

Other words from phenotype

phe′no•typic (-tĭpĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for phenotype

[ fēnə-tīp′ ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for 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 New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.