1. a person who assigns names to things, especially in scientific classification
Usage: formal
2. in ancient Rome, a slave who helped his master by remembering and announcing the names of people they met
Usage: historical

Examples

• The botanist served as nomenclator for the newly discovered plant species.
• As the official nomenclator, she was responsible for naming all the chemical compounds.
• The nomenclator carefully followed international rules for scientific naming.
• In Roman society, a wealthy citizen’s nomenclator was invaluable during public gatherings.
• The nomenclator whispered the approaching senator’s name to his master.
• Modern taxonomists act as nomenclators when they classify new organisms.