Of, relating to, or determined by polygenes: polygenic inheritance. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "polygenic" in a sentence
"But this could be a long process as disc degeneration is what's called polygenic, meaning it involves more than one gene."
"Sandra, he says, could easily be a product of what is known as polygenic inheritance - or, more colloquially, she is a throwback."
"Slide 13: Many traits are controlled by two or more genes and are called polygenic traits."