from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Involving, dependent on, or controlled by a single gene.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Of or pertaining to one single factor.


from Wiktionary, Creative Commons Attribution/Share-Alike License

uni- +‎ factorial


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  • The presumptions of a genetic basis for discontinuous phenotypic polymorphism and its maintenance by natural selection are clear from the writings of Ford cited above but these principles also can be found together in a single statement: “In view of these considerations it is clear that if any unifactorial character is at all widespread it must be of some [adaptive] value.

    Evolutionary Genetics Wade, Michael 2005


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