Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: sump  súmp
  1. An oil reservoir in an internal combustion engine
  2. A well or other hole in which water has collected
  3. A covered cistern; waste water and sewage flow into it
    - cesspool, cesspit, sink

Derived forms: sumps

Type of: cistern, reservoir, well

Encyclopedia: Sump