dilutor

transitive verb diluted, diluting

1. to thin down or weaken as by mixing with water or other liquid
2. to change or weaken (in brilliance, force, effect, etc.) by mixing with something else

Origin: < L dilutus, pp. of diluere, to wash away < dis-, off, from + luere, var. of lavare, to lave

intransitive verb

adjective