unary

[ yoo-nuh-ree ]

adjective

, Mathematics.

1. pertaining to a function whose domain is a given set and whose range is contained in that set.

unary

/ ˈjuːnərɪ /

adjective

1. consisting of, or affecting, a single element or component; monadic

Word History and Origins

Origin of unary¹

1570–80; < Latin ūn ( us ) one + -ary, on the model of binary

Word History and Origins

Origin of unary¹

C16 (in the obsolete sense: a unit): from Latin unus one + -ary