 现代英汉综合大辞典
n.  【化】臭氧
[喻]爽心怡神的力量; [口]新鲜空气  ozone layer 臭氧层(距地球表面20-40英里, 为同温层的外缘)
现代英汉词典
n. 新鲜空气 臭氧
简明英汉词典
n. 新鲜的空气, [化]臭氧
柯林斯英语大词典
ozone 
[ˈəʊzəʊn,əʊˈzəʊn]
n a colourless gas with a chlorine-like odour, formed by an electric discharge in oxygen: a strong oxidizing agent, used in bleaching, sterilizing water, purifying air, etc Formula: O&-{3}; density: 2.14 kg/m³; melting pt: --192°C; boiling pt: --110.51°CTechnical name trioxygen clean bracing air, as found at the seaside
WordNet
ozone Noun 1. a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation) (hypernym) (substance-meronym) oxygen, O, atomic number 8
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