óson

Noun

 * 1)  ozone (symbol O3); an allotrope of oxygen having three atoms in the molecule instead of the usual two

Derived terms

 * (ozone depleting substances)
 * (ozone depletion potential)
 * (ozone hole)
 * (ozone layer)
 * (the ozone layer, ozonosphere)
 * (ozone pollution)
 * (ozone sickness)