The Collaborative International Dictionary of English v.0.48:

Analemma \An`a*lem"ma\ (-l[e^]m"m[.a]), n. [L. analemma a sun
   dial on a pedestal, showing the latitude and meridian of a
   place, Gr. 'ana`lhmma a support, or thing supported, a sun
   dial, fr. 'analamba`nein to take up; 'ana` + lamba`nein to
   take.]
   1. (Chem.) An orthographic projection of the sphere on the
      plane of the meridian, the eye being supposed at an
      infinite distance, and in the east or west point of the
      horizon.
      [1913 Webster]

   2. An instrument of wood or brass, on which this projection
      of the sphere is made, having a movable horizon or cursor;
      -- formerly much used in solving some common astronomical
      problems.
      [1913 Webster]

   3. A scale of the sun's declination for each day of the year,
      drawn across the torrid zone on an artificial terrestrial
      globe.
      [1913 Webster] analepsis