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energetic

Pronunciation: /ˌɛnəˈdʒɛtɪk/

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Definition of energetic

adjective

1showing or involving great activity or vitality:moderately energetic exercise

2 Physics relating to or characterized by energy (in the technical sense):energetic X-rays

Derivatives

energetically

Origin:

mid 17th century (in the sense 'powerfully effective'): from Greek energētikos, from energein 'operate, work in or upon' (based on ergon 'work')