Pronunciation: (ō"vur-presh'ur), [key]
—n., v., -sured, -sur•ing.
pressure in excess of normal atmospheric pressure, as that caused by an explosion's shock wave or created in an accelerating airplane.
1. to cause or expose to overpressure.
2. to make undue demands on by a regimen, work load, etc.: students overpressured with heavy academic schedules.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.