Definitions

1. noun

a person who disturbs or causes trouble or annoyance

“The noisy neighbor was a disturbance to the whole family, but the real disturber was the barking dog.”

2. verb

to cause trouble or annoyance to someone or something

“The new policy was meant to help, but it ended up disturbing the balance of the company.”

3. noun

a device or machine that disturbs or agitates a fluid or gas, especially in a laboratory or industrial setting

“The stirrer in the chemical mixture was the main disturber, and it needed to be replaced.”