What is Wrinkle?
Wrinkle is (noun) 1. a fold in the skin She had a facelift to remove wrinkles round her eyes. 2. a line or crease in cloth etc. She tried to iron out the wrinkles in his trousers. (verb) 1. to make lines or creases in the skin Her face has started to wrinkle. She wrinkled her nose at the smell. 2. to make lines or creases in something Sitting in the hot bus all day has wrinkled her shirt.
source: Easier English, Student Dictionary Upper Intermediate Level