We found 8 dictionaries that define the word interest groups:

General (6 matching dictionaries)

1. interest groups: Merriam-Webster
2. interest groups: Collins English Dictionary
3. interest groups: Vocabulary.com
4. interest groups: Cambridge Advanced Learner's Dictionary
5. interest groups: Wiktionary
6. Interest groups: Wikipedia, the Free Encyclopedia

Business (1 matching dictionary)

7. Interest groups: Legal dictionary

Computing (1 matching dictionary)

8. Interest groups: Encyclopedia

(Note: See interest_group as well.)

Definitions from Wiktionary (interest group) ▸ noun:  An advocacy group. ▸ Also see interest_group Types: environmental, labor, business, religious, political, more... Phrases: special interest groups, more... ▸ Words similar to interest groups ▸ Usage examples for interest groups ▸ Idioms related to interest groups ▸ Wikipedia articles (New!) ▸ Words that often appear near interest groups ▸ Rhymes of interest groups ▸ Invented words related to interest groups