“+ adjective
Etymology: French, from uni- + nominal, from Medieval Latin nominalis — more at nominal
1. : based on the principle of having only one member (as of a legislature) selected from each electoral district
a uninominal electoral system
a uninominal ballot
— compare list system , proportional representation , single-member district
2.
a. : having, relating to, or consisting of a single name or identifying term
b. : of, relating to, or constituting a system of nomenclature in which items have single names