verb
(transitive) To make thinner by adding solvent to a solution, especially by adding water.
(transitive) To weaken, especially by adding a foreign substance.
(transitive, stock market) To cause the value of individual shares or the stake of a shareholder to decrease by increasing the total number of shares.
(intransitive) To become attenuated, thin, or weak.
adjective
Having a low concentration.
Weak; reduced in strength by dilution; diluted.
Of an animal: having a lighter-coloured coat than is usual.
noun
An animal having a lighter-coloured coat than is usual.