| sulcus | (n) (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain |
| Sulcus | ‖n.; |
| 脑沟 | [脑 沟 / 腦 溝] sulcus (groove or fissure dividing lobes of the brain) [Add to Longdo] |
| 運動皮質 | [うんどうひしつ, undouhishitsu] (n) motor cortex (area of the brain just anterior to the central sulcus responsible for controlling voluntary muscle activity) [Add to Longdo] |
| 歯肉溝 | [しにくこう, shinikukou] (n) gingival sulcus [Add to Longdo] |