- 1. n. A furrow; a groove; a fissure. Source: opted
- 2. n. (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain Source: wordnet
- 3. n:100 n. (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain Source: ecdict
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sulcus
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