Source : Webster's Revised Unabridged Dictionary (1913)

Bull \Bull\, n. [OE. bulle, fr. L. bulla bubble, stud, knob,
   LL., a seal or stamp: cf. F. bulle. Cf. {Bull} a writing,
   {Bowl} a ball, {Boil}, v. i.]
   1. A seal. See {Bulla}.

   2. A letter, edict, or respect, of the pope, written in
      Gothic characters on rough parchment, sealed with a bulla,
      and dated ``a die Incarnationis,'' i. e., ``from the day
      of the Incarnation.'' See Apostolical brief, under
      {Brief}.

            A fresh bull of Leo's had declared how inflexible
            the court of Rome was in the point of abuses.
                                                  --Atterbury.

   3. A grotesque blunder in language; an apparent congruity,
      but real incongruity, of ideas, contained in a form of
      expression; so called, perhaps, from the apparent
      incongruity between the dictatorial nature of the pope's
      bulls and his professions of humility.

            And whereas the papist boasts himself to be a Roman
            Catholic, it is a mere contradiction, one of the
            pope's bulls, as if he should say universal
            particular; a Catholic schimatic.     --Milton.

   {The Golden Bull}, an edict or imperial constitution made by
      the emperor Charles IV. (1356), containing what became the
      fundamental law of the German empire; -- so called from
      its golden seal.

   Syn: See {Blunder}.