Source : Webster's Revised Unabridged Dictionary (1913)

Thirty-second \Thir"ty-sec`ond\, a.
   Being one of thirty-two equal parts into which anything is
   divided.

   {Thirty-second note} (Mus.), the thirty-second part of a
      whole note; a demi-semiquaver.

Source : WordNet®

thirty-second note
     n : a musical note having the time value of a thirty-second of a
         whole note [syn: {demisemiquaver}]