Definition of septage in US English:



  • Excrement and other waste material contained in or removed from a septic tank.

    • ‘Septage can be applied to the land as a fertilizer and. soil conditioner.’
    • ‘At present most of the island's septage is simply dumped on vacant land and such activity not only poses a threat to the environment, but public health as well, it is at worst unsafe and unhygienic.’
    • ‘Dispose of septage from the tank in a safe, legal manner.’
    • ‘Septage can be incorporated into the land on either the surface or subsurface.’


1970s: from septic, on the pattern of sewage.