Noun tremor has 3 senses
  1. tremor, shudder - an involuntary vibration (as if from illness or fear)
    --1 is a kind of vibration, quiver, quivering
  2. tremor, earth tremor, microseism - a small earthquake
    --2 is a kind of earthquake, quake, temblor, seism
    --2 has particulars: aftershock; foreshock
    Derived form: verb tremor1
  3. tremor - shaking or trembling (usually resulting from weakness or stress or disease)
    --3 is a kind of
    shaking, shakiness, trembling, quiver, quivering, vibration, palpitation
    --3 is a part of
     paralysis agitans, Parkinsonism, Parkinson's disease, Parkinson's syndrome, Parkinson's, shaking palsy
    --3 has particulars: essential tremor
,Verb tremor has 1 sense
  1. tremor, quake - shake with seismic vibrations; "The earth was quaking"
    --1 is one way to shake, agitate
    Derived form: noun tremor2
    Sample sentence:
    Something ----s