DEINCLINERS
, or Deinclining Dials, are such as both decline and incline, or recline, at the same time. Suppose, for instance, a plane cutting the prime vertical circle at an angle of 30 degrees, and the horizontal plane at an angle of 24 degrees, the latitude of the place being 52 degrees; a dial drawn on this plane, is called a deincliner.
DELIACAL Problem, a celebrated problem among the ancients, concerning the duplication of the cube.