(physics) The energy released by a nuclear reaction; either through nuclear fission or nuclear fusion / Such energy used as a power source.

Energy in the form of electromagnetic radiation emitted from the Sun; especially that part of this energy that is converted into usable thermal or electrical energy by man.

(chemistry, physics) The energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy. A small push given to a stable but top-heavy object may cause it to fall over; the potential energy released during the fall was present in the system all along but could not be realized as long as the object was upright and balanced.

plural of energy carrier

(physics) the portion of the elementary particle's mass due to the interaction with its environment

plural of energy bar

(physics) a principle stating that energy may not be created or destroyed

plural of energy weapon

A weapon that fires a beam or pulse of energy instead of a projectile.

A branch of alternative medicine based on the belief that a healer can channel healing energy into a patient by various methods.