“Nonconforming use” means a use which was lawfully established and maintained but which, because of the application of this title to it, no longer conforms to the use regulations of the zone in which it is located as defined by this title. (Ord. 3136 § 1, 2015; Ord. 2020 § 2, 1994; Ord. 190 Art. IV § 414, 1964. Formerly 21.02.520)