- sulcus as a noun:
- 1
sulcus
noun
1 sulcus
anatomy Any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain.
Roget 259: furrow, groove, rut, sulcus [Anat.], scratch, streak, striae, crack, score, incision, slit; chamfer, fluting; ... show more
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