noun Genetics.

the phenomenon of one gene being responsible for or affecting more than one phenotypic characteristic.

Origin of pleiotropy

First recorded in 1935–40; pleio- + -tropy
Related formsplei·o·trop·ic [plahy-uh-trop-ik, -troh-pik] /ˌplaɪ əˈtrɒp ɪk, -ˈtroʊ pɪk/, adjectiveplei·o·trop·i·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pleiotropic

Contemporary Examples of pleiotropic

Word Origin and History for pleiotropic



1921, from German pleiotrop (1910), from Greek pleion "greater in quantity, the more part, very many," (see pleio-) + trope "turn, turning" (see trope). Related: Pleiotropic; pleiotropism.

Online Etymology Dictionary, © 2010 Douglas Harper