We found 11 dictionaries that define the word chat rooms:

General (8 matching dictionaries)

1. chat rooms: Merriam-Webster
2. chat rooms: Collins English Dictionary
3. chat rooms: Vocabulary.com
4. chat-rooms: Wordnik
5. chat rooms: Cambridge Advanced Learner's Dictionary
6. chat-rooms, chat rooms: Wiktionary
7. Chat rooms: Wikipedia, the Free Encyclopedia
8. Chat rooms: TheFreeDictionary.com

Business (1 matching dictionary)

9. Chat Rooms: E-Commerce and Marketing Dictionary of Terms

Computing (1 matching dictionary)

10. Chat rooms: Encyclopedia

Medicine (1 matching dictionary)

11. Chat rooms: Medical dictionary

(Note: See chat_room as well.)

Definitions from Wiktionary (chat room) ▸ noun:  (Internet) Part of a website or other network where visitors can converse in typed messages. ▸ Also see chat_room Opposite: forums, message boards, discussion boards, bulletin boards ▸ Words similar to chat rooms ▸ Usage examples for chat rooms ▸ Idioms related to chat rooms ▸ Wikipedia articles (New!) ▸ Words that often appear near chat rooms ▸ Rhymes of chat rooms ▸ Invented words related to chat rooms