IPA: /ˈaʊtˌpʊʃ/
KK: /aʊtˌpʊʃ/
A force or pressure that pushes something outward from the inside.
The outpush of air from the balloon caused it to fly across the room.
Outpush → It is formed from "out-" (meaning outside or outward) and "push" (from Old English "pyssan", meaning to thrust or shove). The word "outpush" means to push something outward or away from oneself.
Think of pushing something "outward" ('out-') — that's why outpush means to push something away.