helium
1 synonyms and 0 antonyms for helium, ranked by how commonly they're used.
Noun — A colorless, odorless, chemically inert gas, the second-lightest element, used to fill balloons and cool superconducting equipment.
1 synonyms and 0 antonyms for helium, ranked by how commonly they're used.
Noun — A colorless, odorless, chemically inert gas, the second-lightest element, used to fill balloons and cool superconducting equipment.