資料來源 : Webster's Revised Unabridged Dictionary (1913)

Trundlehead \Trun"dle*head`\, n.
   1. (Gearing) One of the disks forming the ends of a lantern
      wheel or pinion.

   2. The drumhead of a capstan; especially, the drumhead of the
      lower of two capstans on the sane axis.