Definition of: antonomasia

(an′tə·nō·mā′zhə, -zhē·ə) noun
1. The substitution of a title or epithet for a proper name, as his Honor, for a judge.
2. The use of the name of a representative individual for a class, as a Cicero, for an orator. [<L <Gk. <antonomazein name instead <anti- instead of + onoma name]