One of the convex folds of the surface of the brain.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "convolution" in a sentence
"These types of operations are commonly referred to as convolution or spatial convolution."
"It was in 1861 that he announced his discovery of the seat of articulate speech in the left side of the frontal region of the brain, since known as the convolution of Broca."
"It is of small size, and consists of a square-shaped convolution, which is termed the precuneus or quadrate lobe."