\Banc\, Bancus \Ban"cus\, Bank \Bank\, n. [OF. banc, LL.
bancus. See {Bank}, n.]
A bench; a high seat, or seat of distinction or judgment; a
tribunal or court.
{In banc}, {In banco} (the ablative of bancus), {In bank}, in
   full court, or with full judicial authority; as, sittings
   in banc (distinguished from sittings at {nisi prius}).