tremble

To tremble is to quiver or shake without meaning to. Your hands probably tremble when you're nervous.

Trembling is a movement, but it's not one that anyone intends to make. Someone who is extremely scared or cold might tremble all over. Older people tend to tremble more often than younger people, sometimes because of serious disorders like Parkinson's disease. The root word of tremble is the Latin tremulus, "trembling or tremulous." Certain honey bees perform a wiggly, shivering movement called a "tremble dance," which scientists believe inspires speedier nectar collection.

Definitions of tremble
  1. verb
    move or jerk quickly and involuntarily up and down or sideways
    “His hands were trembling when he signed the document”
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    types:
    shiver, shudder, thrill, throb
    tremble convulsively, as from fear or excitement
    palpitate, quake, quiver
    shake with fast, tremulous movements
    type of:
    agitate, shake
    move or cause to move back and forth
  2. noun
    a reflex motion caused by cold or fear or excitement
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