The Collaborative International Dictionary of English v.0.48:

Malpighian \Mal*pi"ghi*an\, a. (Anat.)
   Of, pertaining to, or discovered by, Marcello Malpighi, an
   Italian anatomist of the 17th century.
   [1913 Webster]

   Malpighian capsules or Malpighian corpuscles (Anatomy),
      the globular dilatations, containing the glomeruli or
      Malpighian tufts, at the extremities of the urinary
      tubules of the kidney.

   Malpighian corpuscles of the spleen, masses of adenoid
      tissue connected with branches of the splenic artery.
      [1913 Webster]