Definition of peroxyacetyl nitrate
: a toxic compound C2H3O5N found especially in smog
First Known Use of peroxyacetyl nitrate
Medical Definition of peroxyacetyl nitrate
: a toxic compound C2H3O5N irritating to the eyes and upper respiratory tract that is formed by the action of sunlight on volatile organic compounds and oxides of nitrogen and is found especially in smog—abbreviation PAN
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