Definitions for "Polycyclic aromatic hydrocarbon"
Any of a class of hydrocarbon molecules with multiple carbon rings that include numerous carcinogenic substances and environmental pollutants.
one of a class of hydrocarbon compounds containing more than one aromatic ring structure; e.g., naphthalene
Any of various organic compounds composed of a few to many six-membered rings of carbon atoms linked by an alternating sequence of single and double bonds and to which hydrogen atoms are attached.