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nitrogen dioxide
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noun Chemistry.
a reddish-brown, highly poisonous gas, NO2, used as an intermediate in the manufacture of nitric and sulfuric acids, and as a nitrating and oxidizing agent; a major air pollutant from the exhaust of internal combustion engines that are not fitted with pollution control devices.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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British Dictionary definitions for nitrogen dioxide
nitrogen dioxide
noun
a red-brown poisonous irritating gas that, at ordinary temperatures, exists in equilibrium with dinitrogen tetroxide. It is an intermediate in the manufacture of nitric acid, a nitrating agent, and also an oxidizer for rocket fuels. Formula: NO 2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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