Dill seed description: dill is the dried fruit of the herb anethum graveolens, which belongs to the parsley family. Dill seeds are oval-shaped, soft and fluffy and has a pungent and aromatic flavor.dill seeds have been used since ancient times. The romans actually used them as a stimulant for gladiators! today it is widely used in pickling and in german, russian, scandinavian and indian dishes, salad dressing, soup and the preparation of cottage cheese.