Definition that contains horizontal plane
- level being on a precise horizontal plane
- pitch degree of deviation from a horizontal plane
- rake degree of deviation from a horizontal plane
- slant degree of deviation from a horizontal plane
- capstan a windlass rotated in a horizontal plane around a vertical axis; used on ships for weighing anchor or raising heavy sails
- spandrel an approximately triangular surface area between two adjacent arches and the horizontal plane above them
- spandril an approximately triangular surface area between two adjacent arches and the horizontal plane above them