The Collaborative International Dictionary of English v.0.48:

Minute \Min"ute\, a.
   Of or pertaining to a minute or minutes; occurring at or
   marking successive minutes.
   [1913 Webster]

   Minute bell, a bell tolled at intervals of a minute, as to
      give notice of a death or a funeral.

   Minute book, a book in which written minutes are entered.


   Minute glass, a glass measuring a minute or minutes by the
      running of sand.

   Minute gun, a discharge of a cannon repeated every minute
      as a sign of distress or mourning.

   Minute hand, the long hand of a watch or clock, which makes
      the circuit of the dial in an hour, and marks the minutes.
      [1913 Webster]

WordNet (r) 3.0 (2006):

minute gun
    n 1: (military) gun that is discharged once every minute
         (usually as part of a military funeral)