The Collaborative International Dictionary of English v.0.48:

Furrow \Fur"row\, v. t. [imp. & p. p. Furrowed; p. pr. & vb.
   n. Furrowing.] [From Furrow, n.; cf. AS. fyrian.]
   1. To cut a furrow in; to make furrows in; to plow; as, to
      furrow the ground or sea. --Shak.
      [1913 Webster]

   2. To mark with channels or with wrinkles.
      [1913 Webster]

            Thou canst help time to furrow me with age. --Shak.
      [1913 Webster]

            Fair cheeks were furrowed with hot tears. --Byron.
      [1913 Webster]

WordNet (r) 3.0 (2006):

furrowed
    adj 1: having long narrow shallow depressions (as grooves or
           wrinkles) in the surface; "furrowed fields"; "his
           furrowed face lit by a warming smile" [syn: furrowed,
           rugged] [ant: unfurrowed]

Moby Thesaurus II by Grady Ward, 1.0:

70 Moby Thesaurus words for "furrowed":
   canaliculate, canaliculated, carved, chamfered, channeled, cockled,
   cockly, corduroy, corduroyed, corrugate, corrugated, costate,
   creased, crimped, crimpy, crinkled, crinkly, crumpled, cut, dadoed,
   enchased, engraved, fluted, gashed, glyphic, goffered, gouged,
   graved, graven, grooved, impressed, imprinted, incised, inscribed,
   insculptured, knitted, knotted, lined, marked, pleated, printed,
   puckered, puckery, pursed, pursy, rabbeted, ribbed, ridged, rifled,
   rimpled, rippled, rucked, rugged, rugose, rugous, rumpled, rutted,
   rutty, scored, scratched, sculptured, slit, stamped, striated,
   sulcate, sulcated, tooled, troughed, wrinkled, wrinkly