We found 4 dictionaries that define the word extension courses:

General (4 matching dictionaries)

1. extension courses: Collins English Dictionary
2. extension courses: Vocabulary.com
3. extension courses: Infoplease Dictionary
4. extension courses: Dictionary.com

(Note: See extension_course as well.)

Definitions from WordNet (extension course) ▸ noun:  a course offered as part of an extension service ▸ Also see extension_course ▸ Words similar to extension courses ▸ Usage examples for extension courses ▸ Idioms related to extension courses ▸ Wikipedia articles (New!) ▸ Words that often appear near extension courses ▸ Rhymes of extension courses ▸ Invented words related to extension courses