Demonstrator
Pronunciation : Dem"on*stra`tor
Part of Speech : n.
Etymology : [L.: cf. F. d?monstrateur.]
Definition : 1. One who demonstrates; one who proves anything with certainty, or establishes it by indubitable evidence.
2. (Anat.)
Defn: A teacher of practical anatomy.
Source : Webster's Unabridged Dictionary, 1913