Pronunciation: (īd'lur), [key]
1. a person who passes time in a lazy or unproductive way.
2. Mach.an idle gear, wheel, or pulley.
3. Railroads.an empty freight car placed under the projecting end of a long object carried by the next car, so that the latter can be connected with another part of the train.
4. Naut.See day man (def. 2).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.