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Definition of: involuntary
(in·vol′ən·ter′ē) adjective
1. Contrary to one's will or wish.
2. Not under the control of the will.
3. Unintentional.
4. Physiol. Describing those muscles, glands, and other bodily organs which act independently of conscious control. See synonyms under SPONTANEOUS.
—in·vol′un·tar′i·ly adverb
—in· vol′un·tar′i·ness noun
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