Nomenclator definition

nōmən-klātər

An assistant who specializes in providing timely and spatially relevant reminders of the names of persons and other socially important information.

noun

One who assigns names, as in scientific classification.

noun

One who assigns names, as in scientific classification.

noun

A person who invents names for, or assigns them to, things, as in scientific classification.

noun

One who assigns or constructs names for persons or objects or classes thereof, as in a scientific classification system.

noun

A document containing such name assignments.

noun

A person, specif. a slave in ancient Rome, who announces the names of guests, etc.

noun

Other Word Forms

Singular:

nomenclator

Plural:

nomenclators

Latin nōmenclātor a slave who accompanied his master to tell him the names of people he met variant of nōmenculātor nōmen name nō̆-men- in Indo-European roots calātor servant, crier (from calāre to call kelə-² in Indo-European roots)

From American Heritage Dictionary of the English Language, 5th Edition
From Latin nōmenclātor (“slave who told master names of persons master met"), from nōmen (“name") + calō (“call together").

From Wiktionary