Pronunciation: (un-lās'), [key]
—v.t., -laced, -lac•ing.
1. to loosen or undo the lacing or laces of (a pair of shoes, a corset, etc.).
2. to loosen or remove the garments of (a person) by or as if by undoing laces.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.