17.02.090: DEFINITIONS XV:
   A.   "Natural grade" means the surface of the ground prior to grading.
   B.   "Net acre" means an acre of land which does not or will not include any area in public right of way after subdivision or development of the land.
   C.   "Nonconforming use" means the following:
      1.   "Nonconforming activity" means an activity which, under the zoning ordinance, is not itself a permitted activity where it is located, but which was permitted by or conformed to the requirements of a zoning ordinance in effect prior to the effective date of the zoning ordinance codified in this title.
      2.   "Nonconforming facility" means a facility which, under the zoning ordinance, is not itself a permitted facility where it is located or does not conform to: off street parking or loading requirements, performance standards, site performance standards, density, height, yard, buffering, landscaping, screening or other requirements applying to facilities; and which was permitted by or conformed to requirements of a zoning ordinance in effect prior to the effective date of the zoning ordinance codified in this title.
      3.   "Nonconforming lot" means a lot which, under the zoning ordinance does not meet the lot area or lot dimension requirements of the zoning district where it is located and which was permitted by or conformed to the requirements of a zoning ordinance in effect prior to the effective date of this zoning ordinance.
   D.   "Nuisance" means any use which is established, operated, erected, moved, altered, enlarged, or maintained contrary to city ordinances, except for approved, nonconforming uses. (Ord. 2049 §12, 1987: Ord. 1691 §1(part), 1982)