noun Biology.

the number of homologous chromosome sets present in a cell or organism.

Origin of ploidy

First recorded in 1935–40; see origin at -ploid, -y3 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

ploidy in Medicine




A multiple of the basic number of chromosomes in a cell.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.