—n., adj., v., -cat•ed, -cat•ing.
1. one of four copies or identical items, esp. copies of typewritten material.
2. in quadruplicate, in four identical copies.
1. consisting of four identical parts.
2. pertaining to a fourth item or copy of something.
1. to produce or copy in quadruplicate.
2. to make four times as great.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.