Question

general defination of aromatic compounds

Answer 1

Aromatic compound, any of a large class of unsaturated chemical compounds characterized by one or more planar rings of atoms joined by covalent bonds of two different kinds. The unique stability of these compounds is referred to as aromaticity. Although the term aromatic originally concerned odour, today its use in chemistry is restricted to compounds that have particular electronic, structural, or chemical properties. Aromaticity results from particular bonding arrangements that cause certain π (pi) electrons within a molecule to be strongly held. Aromaticity is often reflected in smaller than expected heats of combustion and hydrogenation and is associated with low reactivity.

Answer 2

an introductory organic chemistry definition of an aromatic compound is one that has a planner ring with 4n + 2 pi- electrons where n is a non negative integer.

I hope it's helpful for you dear friend.