ar·o·mat·ic 
(
ăr
′ə-m
ăt
ĭk)
adj.1. Having an aroma; fragrant or sweet-smelling: aromatic herbs.
2. Chemistry Of, relating to, or containing one or more molecular ring structures having properties of stability and reactivity characteristic of benzene.
n.1. An aromatic plant or substance, such as a medication.
2. Chemistry An aromatic organic compound.
ar′o·mati·cal·ly adv.
ar′o·matic·ness n.

aromaticThe organic compound naphthalene is composed of two fused benzene rings.