treater

from WordNet (r) 3.0 (2006)
treater
    n 1: someone who negotiates (confers with others in order to
         reach a settlement) [syn: {negotiator}, {negotiant},
         {treater}]
    
from The Collaborative International Dictionary of English v.0.48
Treater \Treat"er\, n.
   One who treats; one who handles, or discourses on, a subject;
   also, one who entertains.
   [1913 Webster]
    

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