astral lamp

from The Collaborative International Dictionary of English v.0.48
Astral \As"tral\, a. [L. astralis, fr. astrum star, Gr. ?: cf.
   F. astral. See {Star}.]
   1. Pertaining to, coming from, or resembling, the stars;
      starry; starlike.
      [1913 Webster]

            Shines only with an astral luster.    --I. Taylor.
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            Some astral forms I must invoke by prayer. --Dryden.
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   2. (Biol.) Of or pertaining to an aster; as, astral rays;
      astral sphere.
      [Webster 1913 Suppl.]

   3. (Theosophy) Consisting of, belonging to, or designating, a
      kind of supersensible substance alleged to be next above
      the tangible world in refinement; as, astral spirits;
      astral bodies of persons; astral current; the astral
      plane.
      [Webster 1913 Suppl. +PJC]

   {Astral lamp}, an Argand lamp so constructed that no shadow
      is cast upon the table by the flattened ring-shaped
      reservoir in which the oil is contained.

   {Astral spirits}, spirits formerly supposed to live in the
      heavenly bodies or the a["e]rial regions, and represented
      in the Middle Ages as fallen angels, spirits of the dead,
      or spirits originating in fire.
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