Synergist
Pronunciation : Syn"er*gist
Part of Speech : n.
Etymology : [Cf. F. synergiste.]
Definition : 1. One who holds the doctrine of synergism.
2. (Med.)
Defn: A remedy which has an action similar to that of another remedy, and hence increases the efficiency of that remedy when combined with it.
Source : Webster's Unabridged Dictionary, 1913