helium, n.
(helia)
freq. cnt. 15
(helia)
freq. cnt. 15
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)
<noun.substance> freq. cnt.: 15 freq. cnt.: 15
He atomic number 2 helium
semantic pointers
hypernym