Pronunciation: (kās'wûr"kur), [key]
1. a person who does casework.
2. an investigator, esp. of a social agency, who aids disadvantaged individuals or families chiefly by analysis of their problems and through personal counseling. Also,case'-work"er,case' work"er.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.