Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun activation_energy

1 sense of activation energy

Sense 1
activation energy, energy of activation -- (the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur; "catalysts are said to reduce the energy of activation during the transition phase of a reaction")
       => energy, free energy -- ((physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs; "energy can take a wide variety of forms")