cathedra
- n a throne that is the official chair of a bishop
- Magnificently rumpled, intensely convivial though a teetotaler, flamboyant ("He always spoke ex cathedra," says a senior editor), Bill was a vivid personality in an era when .
- His ex-cathedra advice: Love one another.
- The Pope speaks ex-cathedra, and in consequence infallibly, when and only when he defines formally that a doctrine is of faith.