noun
- a colorless, odorless, inert gas that is lighter than air and does not burn
Usage: chemistry
Examples
- Helium is used to fill balloons because it makes them float.
- The party balloons were filled with helium and rose to the ceiling.
- Helium is the second most abundant element in the universe.
- When you inhale helium, your voice becomes high-pitched temporarily.
- The weather balloon was inflated with helium before its release.
- Helium is a noble gas that rarely reacts with other elements.