A winding, twisting passage or turn; a bend or curve that changes direction in an intricate way.
From Latin 'anfractus' (a winding around, a twist), composed of 'amb-' (around) + 'frangere' (to break). This is the base noun form that gives rise to the adjective and other derived forms.
Neuroscientists actually use 'anfractures' to describe the complicated folds and fissures in the brain—your brain's wrinkles are basically nature's way of packing more processing power into a smaller space.
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