(a) "Lot" means a parcel of land occupied or intended for occupancy by a use permitted in this Zoning Ordinance, including one main building together with accessory buildings, the open spaces and parking spaces required by this Zoning Ordinance, and having its principal frontage upon a street or upon an officially approved place. A lot may or may not be the land shown on a duly recorded plat.
(b) "Lot coverage" means the ratio of enclosed ground floor area of all buildings to the horizontally projected area of the lot, expressed as a percentage.
(c) "Lot of record" means any lot which individually or as a part of a subdivision has been recorded in the office of the Recorder of Deeds of the County.
(d) "Minimum area of lot" means the area of a lot computed exclusive of any portion of the right of way of any public thoroughfare.
(e) "Lot width" means the width of a lot at the building setback line measured at right angles to its depth. The lot width of lots on curved streets shall be the chord distance between points of intersection of the side lot lines with the curve describing the required depth of front yard.