trem·bler I. \ˈtremb(ə)lə(r)\noun (-s) 1.: one that trembles or causes or records trembling 2.: any of various West Indian birds of the genera Cinclocerthia and Rhamphocinclus of the family Mimidae 3.: the vibrating hammer or spring contact piece of an electrical hammer break (as of the electric ignition apparatus for an internal-combustion engine) II. ortremblor variant of temblor