Thesaurus
A really fast thesaurus... with lots of synonyms.
helium (1 synonym found)
Sort helium by: Alphabetically
| Length
| Random | Definition
Definition of helium:
(n) :
a colorless and inert gas, and the second lightest chemical element (symbol He) with an atomic number of 2 and atomic weight of 4.002602
Definition of helium:
(n) :
a colorless and inert gas, and the second lightest chemical element (symbol He) with an atomic number of 2 and atomic weight of 4.002602