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|Noun||1.||Rolando's fissure - a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes|
sulcus - (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain
cerebrum - anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans