• Definition for "activation energy"
    • the vitality necessary to start a reaction. As…
    • View More
  • Sentence for "activation energy"
    • Before a catalyst/enzyme/substrate can speed up…
    • View More
  • Hypernym for "activation energy"
  • Urban Dictionary for "activation energy"
    • The energy that must definitely be…
    • View More

activation energy definition

  • noun:
    • the vitality necessary to start a reaction. As an example, the fire from fuse of a firecracker provides a little preliminary amount of energy, after which it the explosive response continues on it's own, releasing a considerably bigger quantity of energy. A little push directed at a stable but top-heavy item may cause it to-fall over; the possibility power introduced through the autumn ended up being present in the device all along but could not be understood provided the item ended up being upright and balanced.
    • the energy that an atomic system must get before an activity (like an emission or effect) can happen
41 votes

How would you define activation energy?

All the definitions on AZdictionary were written by people just like you. Now's your chance to add your own!