ab.
n. a bachelor's degree in arts and sciences 同义词：Bachelor of ArtsBAArtium BaccalaurensAB
the eleventh month of the civil year; the fifth month of the ecclesiastical year in the Jewish calendar (in July and August) 同义词：AbAv
the muscles of the abdomen 同义词：abdominalabdominal muscleab
the blood group whose red cells carry both the A and B antigens 同义词：ABtype ABgroup AB