A turning or rolling around something; a spiral coil or convolution that winds around an axis or center point.
From Latin circumvolutio, noun form of circumvolvere. Used in anatomy (like brain circumvolutions or gyri) and in mechanics to describe rotating or spiraling motion.
The circumvolutions of the human brain—those wrinkled folds—aren't just decorative; they increase surface area by 3x, packing more neurons into our skulls. Nature evolved this spiral architecture for pure computational power.
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