The Collaborative International Dictionary of English v.0.48:

Cerecloth \Cere"cloth`\, n. [L. cera wax + E. cloth.]
   A cloth smeared with melted wax, or with some gummy or
   glutinous matter.
   [1913 Webster]

         Linen, besmeared with gums, in manner of cerecloth.
                                                  --Bacon.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cerecloth
    n 1: a waterproof waxed cloth once used as a shroud