bipack: Meaning and Definition of

bi•pack

Pronunciation: (bī'pak"), [key]
— n. Photog.
  1. two separate films, each having an emulsion layer sensitive to a different color, held together with their emulsion layers facing for simultaneous exposure through the back of one.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.