the GNU version of the Collaborative International Dictionary of English
n. A rhetorician.
The Century Dictionary and Cyclopedia
n. A rhetorician; a master or teacher of rhetoric.
n. Among the ancient Greeks, an orator.
Word Usage
"I think it is because he once made an argument based on his authority as the author of the history of the oath, so a few people obviously questioned his honesty and pointed out how useless such argument are, especially from a master rhetor."