Ap‐pel″lant, n. 1. (Law) (a) One who accuses another of felony or treason. (b) One who appeals, or asks for a rehearing or review of a cause by a higher tribunal.
2. A challenger. Milton.
3. (Eccl. Hist.) One who appealed to a general council against the bull Unigenitus.
4. One who appeals or entreats.