single-valued

[ sing-guh l-val-yood ]
/ ˈsɪŋ gəlˈvæl yud /

adjective Mathematics.

(of a function) having the property that each element in the domain has corresponding to it exactly one element in the range.
Compare many-valued.

Origin of single-valued

First recorded in 1875–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019