n., pl., -ri (-rī').
Any of the prominent, rounded, elevated convolutions on the surfaces of the cerebral hemispheres.
[Latin gȳrus, circle. See gyre.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
