Treater

noun

Definitions

Noun
  1. 1
    One who or that which treats.

    "I don't know why I do things like that except that sometimes I think that the principal difference between the treater and the treatee is that the treater is in possession of the keys, if only in a symbolic sense […]"

  2. 2
    someone who negotiates (confers with others in order to reach a settlement) wordnet
  3. 3
    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.

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