Aroma compound, a chemical compound possessing an aroma, fragrance, flavor, smell, or odor.
Aromatic compound, an organic chemical compound that contains aromatic rings (arenes) like benzene, pyridine, or indole. These compounds exhibit an unusual stability known as aromaticity, which can be understood using Hückel's rule. The term aromatic in chemistry is no longer associated with aroma, and many aromatic compounds have no smell.
https://en.wikipedia.org/wiki/Aromatic_compounds