Meaning of duplicature

du•pli•ca•ture

Pronunciation: (d'pli-ku-choor", -ku-chur, -kā"chur, dy'-), [key]
— n.
  1. a folding or doubling of a part on itself, as a membrane.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.