Longman Dictionary of Contemporary English - saturate

~ v 1 formal to make something very wet; soak1 (2)  (Water poured through the hole, saturating the carpet.) 2 to put a large number of people or things into a particular place, especially so that you could not add any more  (The area was saturated with police to prevent further trouble.) 3 saturate the market to offer so much of a product for sale that there is more than people want to buy 4 technical to mix as much of a solid into a chemical mixture as possible