Main Entry: con·vo·lu·tion

Pronunciation: \ˌkän-və-ˈlü-shən\

Function: noun

Date: 1545

1 : a form or shape that is folded in curved or tortuous windings
2 : one of the irregular ridges on the surface of the brain and especially of the cerebrum of higher mammals
3 : a complication or intricacy of form, design, or structure