D defs.my
Entry 2 senses Webster, 1913

Declinator

· Dec·li·na·tor · IPA
01 n. An instrument for taking the declination or angle which a plane makes with the horizontal plane.
  1. 1.
    An instrument for taking the declination or angle which a plane makes with the horizontal plane.
  2. 2.
    A dissentient.[R.]