saturation point

saturation point (plural saturation points)

1. The stage at which saturation is reached,
   1. (physics) The temperature at which the air becomes saturated and water vapor condenses to form dew.

      Synonym: dew point

   2. (figuratively) The moment when someone can't take it anymore.

      I've reached saturation point.

• “saturation point”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “saturation point”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.