(A) A
PRIMARY USE is the principal use of the land authorized in the districts established by or under § 156.020 above. Primary uses are authorized in the districts established by or under § 156.020 above as shown by an "X" in the table in § 156.041 below.
(B) Where the use is designated for the district with an "S", the use is permitted in that district only if a special use has been approved under § 156.112 below.