dictionary.pt
ozone
nounmasculinetechnicalcommon/ɔˈzonu/o·zo·no
Definition
1Triatomic molecule of oxygen (O₃), a bluish gas with a strong odour, present in the stratosphere where it protects Earth from ultraviolet radiation.
Usage examples
“The ozone layer is slowly recovering. / Ground-level ozone is a pollutant.”
Common combinations
ozone layerozone holeground-level ozone