extension courses
noun
(in many universities and colleges) a program for persons not regularly enrolled as students, frequently provided through evening classes or classes in off-campus centers, or by correspondence.
Compare
university extension.
Origin of extension courses
First recorded in 1880–85
Words nearby extension courses
extensimeter,
extension,
extension agent,
extension bolt,
extension cord,
extension courses,
extension field,
extension ladder,
extension library service,
extension ring,
extension rule