Dictionary

polycyclic aromatic hydrocarbon

noun

Definition of POLYCYCLIC AROMATIC HYDROCARBON

:  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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First Known Use of POLYCYCLIC AROMATIC HYDROCARBON

1951
Medical Dictionary

polycyclic aromatic hydrocarbon

noun

Medical Definition of POLYCYCLIC AROMATIC HYDROCARBON

:  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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