plication
/plaɪˈkeɪʃən/noun
1- a fold or corrugation皱襞, 褶, 扇折。
1.1
- mass noun the manner of folding or condition of being folded具褶, 有襞, 折叠。
词源
late Middle English: via Old French from medieval Latin plicatio（n-）， from Latin plicare 'to fold'.