Source : Webster's Revised Unabridged Dictionary (1913)

Inquisitor \In*quis"i*tor\, n. [L.: cf. F. inquisiteur. See
   {Inquire}.]
   1. An inquisitive person; one fond of asking questions. [R.]
      ``Inquisitors are tatlers.'' --Feltham.

   2. (Law) One whose official duty it is to examine and
      inquire, as coroners, sheriffs, etc. --Mozley & W.

   3. (R.C.Ch.) A member of the Court of Inquisition.

Source : WordNet®

inquisitor
     n 1: a questioner who is excessively harsh [syn: {interrogator}]
     2: an official of the ecclesiastical court of the Inquisition