Plication
Part of speech: noun
Definition: A fold. An act of folding. A surgical procedure in which a body part is strengthened or shortened by pulling together folds of excess material, and suturing them into place.
Pleating
Part of speech: verb
Definition: To form one or more pleats in a piece of fabric or a garment.
Part of speech: noun
Definition: An action or arrangement in which something is pleated.