Definition from Wiktionary, the free dictionary
See also: spill over
spillover (plural spillovers)
- That which overflows; the excess or side effect.
- The spillover from the dam due to the heavy rains will run down this channel and harmlessly dump into that river, we hope.
- The spillover from this war will be many little massacres of civilians by civilians.
- The spread of infectious disease between different species of animal and particularly to humans.