Meaning of flexure

(noun) the state of being flexed (as of a joint)

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"

act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased