plication plication /plaɪˈkeɪʃən/

noun

1. The act of folding in parallel folds  ( pleating , plication )
   the act of folding in parallel folds
   
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