Im·mac·u·late a.  Without stain or blemish; spotless; undefiled; clear; pure.
  Were but my soul as pure
  From other guilt as that, Heaven did not hold
  One more immaculate.   --Denham.
     Thou sheer, immaculate and silver fountain.   --Shak.
  Immaculate conception R. C. Ch., the doctrine that the Virgin Mary was conceived without original sin.
  -- Im*mac*u*late*ly, adv. -- Im*mac*u*late*ness, n.
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  Immaculate Conception
       n 1: Roman Catholic holy day first celebrated in 1854 [syn: December
            8]
       2: (Christianity) the Roman Catholic doctrine that the Virgin
          Mary was conceived without any stain of original sin