Nomenclator
Pronunciation : No"men*cla`tor
Part of Speech : n.
Etymology : [L., fr. nomen name + calare to call. See Name, and Calendar.]
Definition : 1. One who calls persons or things by their names.
Note: In Rome, candidates for office were attended each by a nomenclator, who informed the candidate of the names of the persons whom they met and whose votes it was desirable to solicit.
2. One who gives names to things, or who settles and adjusts the nomenclature of any art or science; also, a list or vocabulary of technical names.
Source : Webster's Unabridged Dictionary, 1913
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