saturation point

noun

1. the point at which a substance will receive no more of another substance in solution, chemical combination, etc.
2. a point at which some capacity is at its fullest; limit: After a while she reached the saturation point and could absorb nothing more from the lectures.

noun

1. the point at which no more (people, things, ideas, etc) can be absorbed, accommodated, used, etc
2. chem the point at which no more solute can be dissolved in a solution or gaseous material absorbed in a vapour

1. The point at which a substance, under given conditions, can receive no more of another substance in solution.