Lewis & Short

discussor, ōris, m. [discutio], an examiner (late Lat.).

  1. I. In gen., Macr. Somn. Scip. 1, 21, 8.
  2. II. In partic., in the later period of the empire, one who revised the accounts of the public revenue in the provinces, an auditor, Gr. λογοθέτης, Cod. Just. 10, tit. 30; Symm. Ep. 5, 76 al.