Sulcus \Sul"cus\, n.; pl. Sulci. [L., a furrow.] A furrow; a groove; a fissure. [1913 Webster]
Source: The Collaborative International Dictionary of English v.0.48
sulcus
Source: WordNet (r) 2.0
Sulcus \Sul"cus\, n.; pl. Sulci. [L., a furrow.] A furrow; a groove; a fissure.
Source: Webster's Revised Unabridged Dictionary (1913)