Wiktionary
n. pressure applied in one direction to counterbalance pressure from another. vb. (context transitive English) To apply pressure to (something) in one direction to counterbalance pressure from another.
Usage examples of "counterpressure".
The more pressure Ron Moosic put on her to get some control, the more counterpressure was applied on him.
Now he lurched near-sightedly about the stage, running into furniture, whilst his voice became curiously indistinct as the tongue, attempting powerful consonants, sought in vain for the counterpressure of that thick overhang of moustache which had for so long made effective his usual speech.
Pol felt the counterpressure growing and then waning, as Spier mustered his forces with occasional lapses.
Miko pulled down with that upper hand, yanked up with the lower, but at exactly the moment his opponent tried to apply counterpressure, the Jedi suddenly and viciously reversed his momentum, shoving down with his low hand and rolling his upper hand back under the staff and forcing it up and over, to slam hard against the alien's forehead.
It was enough to rock the board steadily and evenly across the Magfield flux paths, to keep the pressure of his feet less than the counterpressure of the Magfield so that the board stayed attached to the soles of his bare feet.