1. a person who discourses; one who speaks or writes at length on a subject
Usage: formal; somewhat rare in modern usage

Examples

• The professor was an eloquent discourser on medieval history.
• As a skilled discourser, she captivated the audience with her lengthy remarks on philosophy.
• He became known as a discourser on political theory throughout his career.
• The discourser held forth for hours on the nature of consciousness.
• Ancient philosophers were often skilled discoursers who engaged in public debate.