desaturate

verb7

1. •
   To cause to become less saturated or unsaturated.

   • With this in mind, Desai has called for imposing more stringent regulations on the ride-hailing sector, to create a more level playing field and, presumably, to desaturate the pool of drivers. — 2018
2. •
   To lessen the saturation of (a colour).
3. •
   To convert (a saturated compound) to an unsaturated one.
4. •
   To become less saturated or unsaturated.
5. •
   To decrease in saturation.
6. •
   Of the oxygen saturation level in one's hemoglobin: to decrease, to drop.
7. •
   To undergo a decrease in the oxygen saturation level in the hemoglobin.