Reference meaning
He
Last updated
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)
Related source terms
heliumatomic number 2
Other meanings
2. noun
the 5th letter of the Hebrew alphabet
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 14639921-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.