Aversa (ävĕr`sä), city (1991 pop. 54,032), Campania, S Italy. It is an agricultural and transportation center, noted for its sparkling white wine. It also produces shoes, mozzarella cheese, and other dairy and agricultural products. In the early 11th cent. the county of Aversa became the first possession of the Normans in Italy; it later was made part of the kingdom of Naples.