Ab- \Ab-\ ([a^]b). [Latin prep., etymologically the same as E.
   of, off. See Of.]
   A prefix in many words of Latin origin. It signifies from,
   away, separating, or departure, as in abduct, abstract,
   abscond. See A-(6).
   [1913 Webster]

	

	Ab \Ab\ ([a^]b), n. [Of Syriac origin.]
   The fifth month of the Jewish year according to the
   ecclesiastical reckoning, the eleventh by the civil
   computation, coinciding nearly with August. --W. Smith.
   [1913 Webster]

	

	AB
     n 1: the blood group whose red cells carry both the A and B
          antigens [syn: type AB, group AB]
     2: a bachelor's degree in arts and sciences [syn: Bachelor of
        Arts, BA, Artium Baccalaurens]
     3: the eleventh month of the civil year; the fifth month of the
        ecclesiastical year in the Jewish calendar (in July and
        August) [syn: Av]
     4: the muscles of the abdomen [syn: abdominal, abdominal
        muscle]

	

	A&B
     
         A bit signaling procedure used in most T1
        transmission facilities where one bit from every sixth frame
        of each of 24 T1 subchannels is used for carrying
        supervisory signaling.
     
        [What does it stand for?  Is this the same as "bit
        robbing"?]
     
        (1997-05-05)