What does appellant mean?
The definition of appellant
Ap*pel”lant, a.
Etym: [L. appellans, p. pr. of appellare; cf. F. appelant. See Appeal.]

Relating to an appeal; appellate. “An appellant jurisdiction.” Hallam. Party appellant (Law), the party who appeals; appellant; — opposed to respondent, or appellee. Tomlins.

Ap*pel”lant, n.
1 (Law)

(a) One who accuses another of felony or treason. [Obs.]
(b) One who appeals, or asks for a rehearing or review of a cause by a higher tribunal.

2 A challenger. [Obs.] Milton.
3 (Eccl. Hist.)
One who appealed to a general council against the bull Unigenitus.
4 One who appeals or entreats.