The Collaborative International Dictionary of English v.0.48:

patterned \patterned\ adj.
   Having describable patterns, especially patterns of colors.
   [Narrower terms: banded, blotched, blotchy, splotched,
   brindled, brindle, brinded, tabby, burled, checked,
   checkered, dappled, mottled, dotted, flecked, specked,
   speckled, stippled, figured, floral, flowered, laced,
   marbled, marbleized, moire, watered, pinstriped,
   pinstripe(prenominal), slashed, streaked, spotted,
   sprigged, streaked, streaky, striped, stripy,
   tessellated, veined, venose] plain, solid
   [WordNet 1.5 +PJC]

The Collaborative International Dictionary of English v.0.48:

Tessellated \Tes"sel*la`ted\, a.
   1. Formed of little squares, as mosaic work; checkered; as, a
      tessellated pavement.
      [1913 Webster]

   2. (Bot. & Zool.) Marked like a checkerboard; as, a
      tessellated leaf.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tessellate \Tes"sel*late\, v. t. [imp. & p. p. Tessellated; p.
   pr. & vb. n. Tessellating.] [L. tessellatus tessellated.
   See Tessellar.]
   To form into squares or checkers; to lay with checkered work.
   [1913 Webster]

         The floors are sometimes of wood, tessellated after the
         fashion of France.                       --Macaulay.
   [1913 Webster]

WordNet (r) 3.0 (2006):

tessellated
    adj 1: having a checkered or mottled appearance
    2: decorated with small pieces of colored glass or stone fitted
       together in a mosaic; "a tessellated pavement"