Trembling is a reflex motion caused by cold, fear, or excitement. It can also denote instability.

Often depicted in art with short, wavy [[motion lines]] surrounding the outline of the body. (see post #1630828)
Sharper, less subtle lines depict [[twitching]], which is more violent and momentary.

Not to be confused with [[^^^]], which expresses reaction.

h4. See also

* [[shaking]]
* [[twitching]]

h4. External Definition
"The Free Dictionary":[https://www.thefreedictionary.com/tremble]
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