open convention
noun U.S. Politics.
a party convention at which delegates are free to vote for the candidate of their choice.
Compare
brokered convention.
Origin of open convention
First recorded in 1955–60
Words nearby open convention
open classroom,
open cluster,
open college,
open comedo,
open communion,
open convention,
open couplet,
open court,
open cover,
open cut,
open dating