Pronunciation: (rē"tär-dā'shun), [key]
1. the act of retarding or state of being retarded.
2. something that retards; hindrance.
3. slowness or limitation in intellectual understanding and awareness, emotional development, academic progress, etc.
4. Music.a form of suspension that is resolved upward. Also,re•tard•mentPronunciation: (ri-tärd'munt). [key]
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.