We found 9 dictionaries that define the word rare gas:

General (6 matching dictionaries)

1. rare gas: Merriam-Webster
2. rare gas: Oxford Learner's Dictionaries
3. rare gas: Collins English Dictionary
4. rare gas: Stammtisch Beau Fleuve Acronyms
5. rare gas: TheFreeDictionary.com
6. rare gas: Wiktionary

Business (1 matching dictionary)

7. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

8. rare gas: Encyclopedia

Medicine (1 matching dictionary)

9. Rare gas: Medical dictionary

Definitions from Wiktionary (rare gas) ▸ noun:  Synonym of noble gas ▸ Words similar to rare gas ▸ Usage examples for rare gas ▸ Idioms related to rare gas ▸ Wikipedia articles (New!) ▸ Words that often appear near rare gas ▸ Rhymes of rare gas ▸ Invented words related to rare gas