1 n-uncount Saturation is the process or state that occurs when a place or thing is filled completely with people or things, so that no more can be added.
Reforms have led to the saturation of the market with goods..., Road traffic has reached saturation point.
2 adj Saturation is used to describe a campaign or other activity that is carried out very thoroughly, so that nothing is missed.
ADJ n
Newspapers, television and radio are all providing saturation coverage.