treater

== English == === Etymology === From treat +‎ -er. === Noun === treater (plural treaters) One who or that which treats. 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. ==== Related terms ==== heat treater trick-or-treater === References === Schlumberger Oilfield Glossary === Anagrams === re-treat, retreat, tree rat