sulcus noun. ['sʌlkǝs] Pl. -ci [-sʌɪ]. M17.
[Latin = furrow, trench, ditch, wrinkle.]
1. A groove made with an engraving tool; a trench, a hollow. rare. M17.
2. Anatomy. A groove or furrow in a body, organ, or tissue, esp. one between two convolutions of the brain. M18.
sulcus of ROLANDO.

■ sulcal adjective of or pertaining to a sulcus L19.

■ sulcate adjective [Latin sulcatus] Botany & Zoology marked with parallel grooves M18.

■ sulcated adjective (Botany & Zoology) sulcate L17.

■ sulcato- combining form [-O-] Botany & Zoology sulcate and : M19.

■ sulciform ['sʌlsɪfɔ:m] adjective (Anatomy & Zoology) having the form of a sulcus E19.

■ sulculus noun, pl. -li, Botany & Zoology a small groove M19.

[TahlilGaran] English Dictionary ▲