1. to write or speak at length on a subject; to discourse or expound formally
Usage: formal; often used with 'on' or 'upon'

Examples

• The professor disserts on the history of medieval philosophy.
• He disserts at length about the merits of classical literature.
• She disserts upon the complexities of modern art theory.
• The scholar disserts on economic policy with great authority.
• They dissert endlessly about the same topic every meeting.