flexure in WordNet English dictionary

1. an angular or rounded shape made by folding
   "a fold in the napkin"; "a crease in his trousers"; "a plication on her blouse"; "a flexure of the colon"; "a bend of his elbow"
   fold  crease  plication  flexure  crimp  bend 
   
2. the state of being flexed (as of a joint)
   flexure  flection  flexion 
   
3. act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased
   flexion  flexure