Function: noun
Date: 1951
: any of a class of hydrocarbon molecules that have multiple carbon rings, and that include numerous carcinogenic substances and environmental pollutants ― abbreviation PAH
Function: noun
Date: 1951
: any of a class of hydrocarbon molecules that have multiple carbon rings, and that include numerous carcinogenic substances and environmental pollutants ― abbreviation PAH
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012