dilute

Short definition from Wiktionary

Verb

1. 1
   To make thinner by adding solvent to a solution, especially by adding water.
2. 2
   To weaken, especially by adding a foreign substance.
3. 3
   To cause the value of individual shares or the stake of a shareholder to decrease by increasing the total number of shares.
4. 4
   To become attenuated, thin, or weak.

Adjective

1. 1
   Having a low concentration.
2. 2
   Weak; reduced in strength by dilution; diluted.
3. 3
   Of an animal: having a lighter-coloured coat than is usual.

Noun

1. 1
   An animal having a lighter-coloured coat than is usual.