Meanings
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1
adj
active or operative; capable of producing an effect
Aristotle distinguished an object's energic powers from its name or outward shape.
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2
adj
forceful, vigorous, or full of energy; now usually expressed by energetic
The essay's energic prose gives unusual force to a familiar argument.
Thesaurus
Etymology
Formed from energy and -ic. Energic once had several senses now normally carried by energetic, but it remains attested in historical, philosophical, and technical writing.