1. Plural of prex; presidents of colleges or universities, especially in informal or student contexts.
Usage: informal; chiefly North American

Examples

• The prexes of the Ivy League schools met to discuss admissions policy.
• Several prexes attended the higher education conference.
• The student newspaper interviewed the prexes about campus life.
• Prexes from across the country gathered for the annual summit.
• The prexes announced new scholarship initiatives.