WordNet
extension course
n. a course offered as part of an extension service
Usage examples of "extension course".
The whole thing remained a feeble extension course for grown-up schoolboys.
But if an extension course was held for the ancient bronze founders, we must look for the masters who conducted it.
She is, she claimed in a recent letter, an oneirocritic, having completed an extension course in dream interpretation.
His sermons were more like a night school extension course and for such as the old man, therefore, highly entertaining and stimulating.