helium
(he-li-um)
3 syllables
Definition
noun. a light gas that is colorless and odorless. it is used in balloons and to cool superconductors.
Example Sentence
Helium is a chemical element with the symbol He and atomic number 2.
More Example Sentences
Helium is lighter than air and safe to use.
Synonyms
noble gas; light gas; balloon gas
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helium
Rhymes
- helium