/ ˌæpəˈstɒlɪk; NAmE -ˈstɑːlɪk/ adjective ( technical )
1.
connected with the Apostles or their teaching
2.
connected with the Pope or Popes, who are considered to have had authority passed down to them from Christ's Apostles
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WORD ORIGIN
Middle English : from French apostolique or ecclesiastical Latin apostolicus , from Greek apostolikos , from apostolos messenger, from apostellein send forth.