IPA: /dɪˈpliːtə/
KK: /dɪˈpliːtər/
A person or thing that reduces or uses up resources, often leading to a shortage.
The factory was identified as a major depleter of local water supplies.
Depleter → It is formed from "de-" (meaning down or away) and "plere" (meaning to fill). The word "depleter" refers to something that causes a reduction in fullness or quantity, effectively taking away or reducing what is filled.
Think of 'taking away' ('de-') from something that is 'full' ('plere') — that's why a depleter reduces what is present.