in Roman antiquity, was usually a slave who attended upon persons who stood candidates for offices, and prompted or suggested to them the names of all the citizens they met, that they might court them and call them by their names, which amongst that people was the highest piece of civility.

Nomenclators, amongst botanical authors, are those who have employed their labours about settling and adjusting the right names, synonymes, and etymologies of names, in regard to the whole vegetable world.