polycyclic aromatic hydrocarbon(redirected from Polycyclic hydrocarbons, aromatic)
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Related to Polycyclic hydrocarbons, aromatic: Polynuclear aromatic hydrocarbons
polycyclic aromatic hydrocarbon
n. Abbr. PAH
Any of a class of carcinogenic organic molecules that consist of three or more benzene rings and are commonly produced by fossil fuel combustion. Also called polynuclear aromatic hydrocarbon.