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Word of the Day
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sulcus

/ˈsʌlkəs/
noun Plural sulci
Anatomy
A groove or furrow, especially one on the surface of the brain.

Origin
Mid 17th century: from Latin, ‘furrow, wrinkle’.

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Puzzling over the program code, Walter could almost feel the sulci of his brain wrinkling deeper. The code, while clear on its face, was bending his mind, something fierce. https://mastodon.art/media/pKx4TBvu4qOQhyhr4Bc