Source : Webster's Revised Unabridged Dictionary (1913)

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.

Source : WordNet®

sulcate
     adj : having deep narrow furrows or grooves