[1] : The Collaborative International Dictionary of English v.0.48

banc \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.
   1913 webster

   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.
      1913 webster
see also:
bank in banc in banco in bank nisi prius 

[2] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

banc or bank. the first of these is a french word signifying bench, 
pronounced improperly bank. 1. the seat of judgment, as banc le roy, the 
king's bench banc le common pleas, the bench of common pleas. 
     2. the meeting of all the judges or such as may form a quorum, as, the 
court sit in banc. cowell's interp. 

Banc >> B Words
Banc, definition of term: Banc
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In Banc >> I Words
In Banc, definition of term: In Banc
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