The Collaborative International Dictionary
Direct primary
Direct primary \Direct primary\ (Political Science) A primary by which direct nominations of candidates for office are made.
Wiktionary
direct primary
n. (context US English) A primary in which voters directly select candidates for office by popular vote
WordNet
direct primary
n. a primary where voters directly select the candidates who will run for office
Usage examples of "direct primary".
He once threw a tax assessor out of his office and required him to return with a search warrant setting forth in detail its constitutional limitations, He regarded the income tax and the Seventeenth Amendment and the direct primary as signs of the decay of the Republic.