n.
Pronunciation: ' ō - ˌ z ō n
Function: noun
Etymology: German Ozon, from Greek oz ō n, present participle of ozein to smell ― more at ODOR
Date: circa 1840
1 : a triatomic very reactive form of oxygen that is a bluish irritating gas of pungent odor, that is a major air pollutant in the lower atmosphere but a beneficial component of the upper atmosphere, and that is used for oxidizing, bleaching, disinfecting, and deodorizing
2 : pure and refreshing air <relished the ozone of morning>
– ozo · nic \ ō - ' z ō -nik, - ' zä- \ adjective