not harmful to the ozone layer; using substances that do not produce gases harmful to the ozone layer: an ozone-friendly refrigerator
not containing chemicals that damage the ozone layer
noun 1. any part of the ozone layer that has become depleted by atmospheric pollution, resulting in excess ultraviolet radiation passing through the atmosphere. ozone hole A severe depletion of ozone in a region of the ozone layer, particularly over Antarctica and over the Arctic. The depletion is caused by the destruction of ozone by […]
noun 1. Meteorology. the layer of the upper atmosphere where most atmospheric ozone is concentrated, from about 8 to 30 miles (12 to 48 km) above the earth, with the maximum ozone concentration occurring at an altitude of about 12 miles (19 km). noun 1. the region of the stratosphere with the highest concentration of […]
[oh-zohn, oh-zohn] /ˈoʊ zoʊn, oʊˈzoʊn/ noun 1. a form of oxygen, O 3 , with a peculiar odor suggesting that of weak chlorine, produced when an electric spark or ultraviolet light is passed through air or oxygen. It is found in the atmosphere in minute quantities, especially after a thunderstorm, is a powerful oxidizing agent, […]
noun, Pathology. 1. a condition characterized by chest pain, itchy eyes, and drowsiness, caused by exposure to ozone, as experienced in the atmospheres of smog and high-altitude airplanes.