Pronunciation: (kō-hēr'unt, -her'-), [key]
1. logically connected; consistent: a coherent argument.
2. cohering; sticking together: a coherent mass of sticky candies.
3. having a natural or due agreement of parts; harmonious: a coherent design.
4. Physics, Optics.of or pertaining to waves that maintain a fixed phase relationship, as in coherent light. Cf. laser.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.