the.com/protrusion
Matter that decided to stop respecting the boundary and lean out anyway.
means A part that sticks out from a surface or body, bulging beyond where it should sit.
from From Latin protrudere, to thrust forward, from pro (forward) plus trudere (to shove) — literally a pushing-out.
Shared rootSame trudere gives us intrude and extrude.
Spinal kindA disc protrusion edges out before fully herniating.
OppositeIntrusion does the reverse — pushing inward instead.