adj.
Pronunciation: -fak- ' to ̇ r- ē - ə l
Function: adjective
Date: 1920
1 : having characters or a mode of inheritance dependent on a number of genes at different loci
2 or mul · ti · fac · tor \ - ' fak-t ə r \ : having, involving, or produced by a variety of elements or causes
– mul · ti · fac · to · ri · al · ly \ -fak- ' to ̇ r- ē - ə -l ē \ adverb