Apostolical

1. a. Of or pertaining to the pope or the papacy; papal.
2. a. Pertaining to an apostle, or to the apostles, their times, or their peculiar spirit; as, an apostolical mission; the apostolic age.
3. a. According to the doctrines of the apostles; delivered or taught by the apostles; as, apostolic faith or practice.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.