- a rolled up or coiled condition.
- a rolling or coiling together.
- a turn of anything coiled; whorl.
- Anatomy. one of the sinuous folds or ridges of the surface of the brain.
Origin of convolution
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for convolutions
Elsewhere on this website, Andrew Sullivan has brilliantly designated these convolutions as a “tic of his generation.”Stephen Schiff: My (Relatively Small) Crime Against Gore Vidal
August 2, 2012
Her hair, in its dips and convolutions, was altogether a puzzle.Free Air
The convolutions of the brain were narrow, and very strongly marked.Cases of Organic Diseases of the Heart
John Collins Warren
The convolutions of the brain structure also appear during this month.Sex
In some cases all the convolutions are visible, as in Operculina (Fig. 16).The Ocean World:
Hence the intestine is forced to form coils or convolutions.The Anatomy of the Human Peritoneum and Abdominal Cavity
George. S. Huntington
- a twisting together; a turn, twist, or coil
- an intricate, involved, or confused matter or condition
- Also called: gyrus any of the numerous convex folds or ridges of the surface of the brain
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for convolutions
Online Etymology Dictionary, © 2010 Douglas Harper
- A form or part that is folded or coiled.
- One of the convex folds of the surface of the brain.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.