1. (

• tremor ,
• shudder

) an involuntary vibration (as if from illness or fear) ;

2. (

• tremor ,
• earth_tremor ,
• microseism

) a small earthquake ;

3. (

• tremor

) shaking or trembling (usually resulting from weakness or stress or disease) ;

1. (

• tremor ,
• quake ,

) shake with seismic vibrations; "The earth was quaking" ;