The Collaborative International Dictionary of English v.0.48:

Parchment \Parch"ment\ (p[aum]rch"ment), n. [OE. parchemin,
   perchemin, F. parchemin, LL. pergamenum, L. pergamena,
   pergamina, fr. L. Pergamenus of or belonging to Pergamus an
   ancient city of Mysia in Asia Minor, where parchment was
   first used.]
   1. The skin of a lamb, sheep, goat, young calf, or other
      animal, prepared for writing on. See Vellum.
      [1913 Webster]

            But here's a parchment with the seal of C[ae]sar.
                                                  --Shak.
      [1913 Webster]

   2. The envelope of the coffee grains, inside the pulp.
      [1913 Webster]

   Parchment paper. See Papyrine.
      [1913 Webster]

WordNet (r) 3.0 (2006):

parchment
    n 1: a superior paper resembling sheepskin
    2: skin of a sheep or goat prepared for writing on [syn:
       parchment, sheepskin, lambskin]