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Medical Term:

impetus

Pronunciation: im'pe-tus

Definition: In psychoanalysis, the motor element of an instinct; the amount of force of the person's energy that the instinctive impulse demands.

[L. an onset, fr. im-peto, to attack]

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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