Pronunciation: (hous'klē"ning), [key]
1. the act of cleaning a house, room, etc., and its furnishings, esp. the act of cleaning thoroughly and completely.
2. the act of improving or reforming by weeding out excess or corrupt personnel or of revising methods of operation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.