diminution

(noun)

noun

1. change toward something smaller or lower

Similar word(s): decline

Definition categories: process, decrease, decrement

2. the statement of a theme in notes of lesser duration (usually half the length of the original)

Definition categories: communication, statement

3. the act of decreasing or reducing something

Similar word(s): decrease, reduction

Definition categories: act

Sentences with diminution as a noun:

- The new emission standards have produced a measurable diminution in air pollution.