any one of a series of three or more alternative or allelic forms of a gene, only two of which can exist in any normal, diploid individual.
Origin of multiple allele
First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
three or more alternative forms of a particular gene existing in a population
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012