Treater

noun

noun ·2 syllables ·Rare ·Advanced level

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.

Synonyms

All synonyms
negotiantnegotiatornegotiator

Example

More examples

"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 […]"

Etymology

From treat + -er.

Related phrases

trick or treater

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.