# treater

> English word · Noun

## Definitions
1. One who or that which treats.
2. A vessel used to treat oil-water emulsions by any of several mechanisms so that the oil can be accepted by the pipeline or transport.

## Etymology
From treat + -er.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/treater