tremor

Noun
  1. An involuntary vibration (as if from illness or fear) (synset 100349627)
    is a type of: quiver, quivering, vibration - the act of vibrating
    same as: shudder
  2. A small earthquake (synset 107444084)
    is a type of: earthquake, quake, seism, temblor - shaking and vibration at the surface of the earth resulting from underground movement along a fault plane or from volcanic activity
    subtypes:
    • aftershock - a tremor (or one of a series of tremors) occurring after the main shock of an earthquake
    • foreshock - a tremor preceding an earthquake
    same as: earth tremor, microseism
  3. Shaking or trembling (usually resulting from weakness or stress or disease) (synset 114028622)
    is a type of: palpitation, quiver, quivering, shakiness, shaking, trembling, vibration - a shaky motion
    subtypes: essential tremor - tremor of unknown cause (usually of the hands and head) that develops in older people; often mistaken for Parkinsonism but is not life-threatening and can usually be kept under control
    is a part of: paralysis agitans, parkinson's, parkinson's disease, parkinson's syndrome, parkinsonism, shaking palsy - a degenerative disorder of the central nervous system characterized by tremor and impaired muscular coordination
Verb
  1. Shake with seismic vibrations (synset 201892777)
    "The earth was quaking"
    is a type of: agitate, shake - move or cause to move back and forth
    same as: quake

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