flexure
n.
1590s, "action of flexing or bending," from Latin flextura, from flectere "to bend" (see flexible). From 1620s as "flexed or bent condition; direction in which something is bent." Picked up in mathematics (1670s), geology (1833).
〔李〕[flex =to bend弯曲；-ure →] n. the state of being bent弯曲
〔蒋〕[flex弯曲，-ure名词后缀] 弯曲