identity element noun
: an element (as 0 in the set of all integers under addition or 1 in the set of positive integers under multiplication) that leaves any element of the set to which it belongs unchanged when combined with it by a specified operation
First Known Use of IDENTITY ELEMENT
Learn More About IDENTITY ELEMENT
Seen & Heard
What made you want to look up identity element? Please tell us where you read or heard it (including the quote, if possible).