flexure flexure /ˈflɛkʃər/

noun

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