polycyclic aromatic hydrocarbon(redirected from Polynuclear aromatic hydrocarbons)
Also found in: Dictionary, Encyclopedia.
Related to Polynuclear aromatic hydrocarbons: Pahs
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.