(1):

(n.) One who appealed to a general council against the bull Unigenitus.

(2):

(n.) One who appeals or entreats.

(3):

(n.) A challenger.

(4):

(n.) One who appeals, or asks for a rehearing or review of a cause by a higher tribunal.

(5):

(a.) Relating to an appeal; appellate.

(6):

(n.) One who accuses another of felony or treason.