We found 7 dictionaries that define the word helium group:

General (7 matching dictionaries)

1. helium group: Merriam-Webster
2. helium group: Vocabulary.com
3. helium group: Dictionary.com
4. helium group: Rhymezone
5. helium group: FreeDictionary.org
6. helium group: Mnemonic Dictionary
7. helium group: TheFreeDictionary.com

Definitions from WordNet (helium group) ▸ noun:  the series of inert gases ▸ Words similar to helium group ▸ Usage examples for helium group ▸ Idioms related to helium group ▸ Wikipedia articles (New!) ▸ Words that often appear near helium group ▸ Rhymes of helium group ▸ Invented words related to helium group