[ koun-ter-presh-er ]
/ ˈkaʊn tərˌprɛʃ ər /
pressure in the opposite direction or with opposing effect.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for counterpressure
There is another way, however, of better securing the same purpose of counterpressure.Old-Time Makers of Medicine|James J. Walsh