activation energy

noun

Definition of activation energy

: the minimum amount of energy required to convert a normal stable molecule into a reactive molecule

First Known Use of activation energy

1924

in the meaning defined above

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Medical Dictionary

activation energy

noun ac·ti·va·tion energy \ ˌak-tə-ˈvā-shən- \

medical Definition of activation energy

: the minimum amount of energy required to convert a normal stable molecule into a reactive molecule called also energy of activation

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