1.
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 ~ of the market with goods...
Road traffic has reached ~ point.
N-UNCOUNT
2.
Saturation is used to describe a campaign or other activity that is carried out very thoroughly, so that nothing is missed.
Newspapers, television and radio are all providing ~ coverage.
ADJ: ADJ n