D defs.my
Entry 2 senses Webster, 1913

Trundlehead

· Trun·dle·head · IPA
01 n. One of the disks forming the ends of a lantern wheel or pinion.
  1. 1.
    One of the disks forming the ends of a lantern wheel or pinion.(Gearing)
  2. 2.
    The drumhead of a capstan; especially, the drumhead of the lower of two capstans on the sane axis.