helium
1.
(
noun
) a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
Synonyms:
He
,
atomic number 2
Related Words:
argonon
,
chemical element
,
element
,
inert gas
,
noble gas
Terms and Conditions of Use / Copyright Notice