soilage

noun4

1. •
   Act, process, or instance of soiling.

   • The majority of military surgeons treating acute injuries of the colon tended to exteriorize the wound as an artificial anus to prevent further soilage of the peritoneal cavity. — 1979
2. •
   State or condition of being soiled.

   • Photograph showing soilage (discoloration) of cotton drill […] — 1985
3. •
   Forage cut and fed to animals while still fresh.
4. •
   (no longer used) Soil.