You know what it looks like… but what is it called?
TAKE THE QUIZ“aromatic-hydrocarbon”
The following 2 entries include the term aromatic-hydrocarbon.
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
polynuclear aromatic hydrocarbon
nounLove words? Need even more definitions?
Merriam-Webster unabridged