Meaning of SATURATION in English

SATURATION

[noun] [U]If something reaches saturation point, it reaches a stage where no more can be added, contained or accepted.Households have reached saturation point in the number of magazines they are prepared to buy.Demand for cars in the developed world will have reached saturation point within 20 years.After six hours of saturation bombing (= extremely severe military attack), no building in the city remained standing.

Cambridge English vocab.      Кембриджский английский словарь.