sulcate

from WordNet (r) 3.0 (2006)

sulcate
    adj 1: having deep narrow furrows or grooves

from The Collaborative International Dictionary of English v.0.48

Sulcate \Sul"cate\, Sulcated \Sul"ca*ted\, a. [L. sulcatus, p.
   p. of sulcare to furrow, fr. sulcus a furrow.]
   Scored with deep and regular furrows; furrowed or grooved;
   as, a sulcated stem.
   [1913 Webster]