The Collaborative International Dictionary of English v.0.48:

Cancelli \Can*cel"li\, n. pl. [L., a lattice. See Cancel, v.
   t.]
   1. An interwoven or latticed wall or inclosure; latticework,
      rails, or crossbars, as around the bar of a court of
      justice, between the chancel and the nave of a church, or
      in a window.
      [1913 Webster]

   2. (Anat.) The interlacing osseous plates constituting the
      elastic porous tissue of certain parts of the bones, esp.
      in their articular extremities.
      [1913 Webster]