“Parking space” means a permanently maintained space on a lot or parcel, suitable for the parking of one automobile, including necessary maneuvering space.

“Pasture, irrigated” means pastureland receiving 18 inches or more of irrigation water per growing season, at least 25 percent of which is received after July 15th.

“Pond” means a body of water smaller than a lake, sometimes artificially formed, but not under jurisdiction of the state of California.

“Potable water” means water of a quality that meets State Health Department drinking water standards.

“Professional office” means an establishment for professional, executive and administrative offices, including those of accountants, lawyers, doctors, dentists, architects, engineers, drafting offices, insurance agents, real estate agents, and other occupations which are of similar character to those enumerated.