What is the meaning of activation energy?

noun

  • The energy that an atomic system must acquire before a process (such as an emission or reaction) can occur.
    • usage: "catalysts are said to reduce the energy of activation during the transition phase of a reaction"
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). activation energy. Retrieved September 21, 2026, from http://smartdefine.org/activation_energy/definitions/1235419
ChicagoWordNet. 2010. "activation energy" http://smartdefine.org/activation_energy/definitions/1235419 (accessed September 21, 2026).
HarvardWordNet 2010, activation energy, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/activation_energy/definitions/1235419>.
MLAWordNet. "activation energy" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/activation_energy/definitions/1235419>