The Collaborative International Dictionary of English v.0.48:

Journal \Jour"nal\, n. [F. journal. See Journal, a.]
   [1913 Webster]
   1. A diary; an account of daily transactions and events.
      Specifically:
      (a) (Bookkeeping) A book of accounts, in which is entered
          a condensed and grouped statement of the daily
          transactions.
      (b) (Naut.) A daily register of the ship's course and
          distance, the winds, weather, incidents of the voyage,
          etc.
      (c) (Legislature) The record of daily proceedings, kept by
          the clerk.
      (d) A newspaper published daily; by extension, a weekly
          newspaper or any periodical publication, giving an
          account of passing events, the proceedings and memoirs
          of societies, etc.; a periodical; a magazine.
          [1913 Webster]

   2. That which has occurred in a day; a day's work or travel;
      a day's journey. [Obs. & R.] --B. Jonson.
      [1913 Webster]

   3. (Mach.) That portion of a rotating piece, as a shaft,
      axle, spindle, etc., which turns in a bearing or box. See
      Illust. of Axle box.
      [1913 Webster]

   Journal box, or Journal bearing (Mach.) the carrier of a
      journal; the box in which the journal of a shaft, axle, or
      pin turns.
      [1913 Webster]

WordNet (r) 3.0 (2006):

journal box
    n 1: metal housing for a journal bearing