a program of classes for adult students offered by a college, university, etc. on a part-time basis, as for updating knowledge and skills in a professional field such as medicine
See continuing education in American Heritage Dictionary 4
(kən-tĭnˈyo͞o-ĭng)
noun
An instructional program that brings participants up to date in a particular area of knowledge or skills.
Instructional courses designed especially for part-time adult students.