overspill

Meanings

nounoverspill (countable and uncountable, plural overspills)

countableuncountableThat which spills over.
New towns were constructed to accommodate overspill from established cities.
1 more example
It is known that means of using this end of the former NLR and Broad Street station to take an overspill of traffic from Liverpool Street have been under backroom study for some time.
1964 July, “News and Comment: The Broad Street-Richmond line”, in Modern Railways, page 17

verboverspill (third-person singular simple present overspills, present participle overspilling, simple past and past participle overspilled or overspilt)

present singular third person overspills · participle present overspilling · participle past overspilled · past overspilled · participle past overspilt · past overspilt

To spill over, to overflow, to spill out of.
Calandra added more, until the oil threatened to overspill her palm.
2004, Delilah Devlin, Pirate's Desire, page 202
1 more example
Further, Coventry's prosperity and rapid growth was threatening that it as well as Birmingham would require to overspill its boundaries.
2002, Urlan Wannop, Regional Imperative: Regional Planning and Governance in Britain, page 93