—n., v., -cat•ed, -cat•ing.
the office or term of office of a pontiff.
1. to perform the office or duties of a pontiff.
2. to speak in a pompous or dogmatic manner: Did he pontificate about the responsibilities of a good citizen?
3. to serve as a bishop, esp. in a Pontifical Mass.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.