What is Appearance Day?

Legal Definition
The day on which the parties are bound to appear in court. This is regulated in the different states by particular provisions.
-- Bouviers Law Dictionary
Legal Definition
The day for appearing; that on which the parties are bound to come into court. Cru-ger v. McCracken (Tex. Civ. App.) 26 S. W. 282.
-- Black's Law Dictionary
Legal Definition
The day on which or before which one must appear. See 26 S. W. (Tex.) 282.
-- Ballentine's Law Dictionary