Trembler /(?)/

Trem·bler

Trembler

n.
  1. One who trembles.
  2. Any of certain West Indian birds of the genera Cinclocerthia and Rhamphocinclus, of the family Mimidae.
  3. The vibrating hammer, or spring contact piece of a hammer break, as of the electric ignition apparatus for an internal-combustion engine. (Elec.)