最終更新日：2024/07/29

(anatomy) A furrow or groove in an organ or a tissue, especially that marking the convolutions of the surface of the brain.

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元となった辞書の項目

sulcus

noun

The sulcus is a groove or furrow on the surface of the brain.

意味（1）

The largest sulcus, the longitudinal fissure, divides the brain into left and right hemispheres.

意味（2）

(planetology) A region of subparallel grooves or ditches formed by a geological process.