trioxygen
nounUK /traɪˈɒksɪdʒən/
US /traɪˈɑːksɪdʒən/
A gas made of three oxygen atoms stuck together, which is the same thing as ozone.
Trioxygen in the upper sky helps block harmful rays from the sun.
SYNONYMS
RELATED WORDS
OTHER MEANINGS
2. A pale blue gas with a sharp smell, often formed near electrical sparks.
You can sometimes smell trioxygen after a thunderstorm.
3. A molecule consisting of three oxygen atoms bonded in a bent shape.
Chemists draw trioxygen as a bent molecule, not a straight line.
4. A form of oxygen used to clean water and kill germs.
Some water plants use trioxygen to make drinking water safer.