The Collaborative International Dictionary
Polygenic \Pol`y*gen"ic\ (-j[e^]n"[i^]k), a. (Biol.) Of or relating to polygeny; polygenetic.
Douglas Harper's Etymology Dictionary
1823, from poly- + -genic. Used in chemistry from 1873 for "forming two or more compounds" (with hydrogen or another univalent element). Related: Polygenetic.
Wiktionary
a. 1 (context genetics English) controlled by the interaction of more than one gene 2 (context mathematics of a function English) having an infinite number of derivatives at a point (otherwise it is monogenic)
WordNet
adj. of or relating to an inheritable character that is controlled by several genes at once; of or related to or determined by polygenes
Usage examples of "polygenic".
Contemporary theory, to which I subscribe, by the way, argues that aging is a polygenic trait.
There were singles, couples, entire families, blacks and whites and Asians and Latinos and four towering Samoan men all with black porkpie hats, beautiful sloe-eyed women willow graceful in their turquoise or ruby or sapphire saris, others in chadors and others in jeans, men in business suits, men in shorts and bright Polo shirts, four young Hasidic Jews arguing (but joyfully) over the most mystical of all documents (a Los Angeles freeway map), uniformed soldiers, giggling children and shrieking children and two placid octogenarians in wheelchairs, a pair of tall Arab princes in akals and keffiyehs and flowing jellabas, preceded by fierce bodyguards and trailed by retinues, beacon-red tourists drifting homeward on the astringent fumes of medicated sunburn lotion, pale tourists arriving with the dampish smell of cloudy country clinging to them -and, like a white boat strangely serene in a typhoon, the man in the Panama hat sailing imperiously through the polygenic sea.