The conscious impulse to perform any act or to abstain from its performance; voluntary action. [L. volo,, to wish]
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vo·li·tion vō-'lish-ən, və- n
1) an act of making a choice or decision also a choice or decision made
2) the power of choosing or determining
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vo·li·tion (vo-lishґən) [L. velle to will] a conscious choice or decision, or the act or power of performing such. volitional adjMedical dictionary. 2011.