Pronunciation: (kong'grOO-uns, kun-grOO'-, kung-), [key]
1. the quality or state of agreeing or corresponding.
2. Math.a relation between two numbers indicating that the numbers give the same remainder when divided by some given number. Cf. residue (def. 4b).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.