The Collaborative International Dictionary of English v.0.48:

Vermiculated \Ver*mic"u*la`ted\, a.
   Made or marked with irregular wavy lines or impressions;
   vermiculate.
   [1913 Webster]

   Vermiculated work, or Vermicular work (Arch.), rustic
      work so wrought as to have the appearance of convoluted
      worms, or of having been eaten into by, or covered with
      tracks of, worms. --Gwilt.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Vermiculate \Ver*mic"u*late\, v. t. [imp. & p. p.
   Vermiculated; p. pr. & vb. n. Vermiculating.] [L.
   vermiculatus inlaid so as to resemble the tracks of worms, p.
   p. of vermiculari to be full of worms, vermiculus a little
   worm. See Vermicular.]
   To form or work, as by inlaying, with irregular lines or
   impressions resembling the tracks of worms, or appearing as
   if formed by the motion of worms.
   [1913 Webster]

WordNet (r) 3.0 (2006):

vermiculated
    adj 1: decorated with wormlike tracery or markings; "vermicular
           (or vermiculated) stonework" [syn: vermicular,
           vermiculate, vermiculated]