polycyclic aromatic hydrocarbon noun
: any of a class of hydrocarbon molecules that have multiple carbon rings, and that include carcinogenic substances and environmental pollutants —abbreviation PAH
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polycyclic aromatic hydrocarbon noun (Medical Dictionary)
: any of a class of hydrocarbon molecules with multiple carbon rings that include numerous carcinogenic substances and environmental pollutants—called also PAH, polynuclear aromatic hydrocarbon
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