1. Something that is complicated, esp. overly complicated
   "The legal process was a convolution of paperwork and procedures"
    
2. The shape of something rotating rapidly
   "The tornado's convolution was visible from miles away";
   - whirl, swirl, vortex
    
3. A convex fold or elevation in the surface of the brain
   "The frontal convolution is involved in higher-order cognitive functions";
   - gyrus
    
4. The action of coiling, twisting or winding together
   "The convolution of the rope made it difficult to untangle"
    
5. (mathematics) the integral of a product of function and a displaced function as a function of the displacement, for example smoothing of one function by another function
   "They used convolution to process the image and reduce noise"

Derived forms: convolutions

Type of: anatomical structure, bodily structure, body structure, change of shape, complex body part, round shape, structure

Part of: cerebrum

Encyclopedia: Convolution