de-excite

American  

[dee-ik-sahyt] / ˌdi ɪkˈsaɪt /

Or deexcite

verb (used with object)

de-excited, de-exciting

1. to cause (an atom) to fall from an excited energy level to a lower energy level.

---

verb (used without object)

de-excited, de-exciting

1. to become de-excited.

Other Word Forms

• de-excitation
  noun
• deexcitation
  noun

Etymology

Origin of de-excite

First recorded in 1960–65

Example Sentences

See Examples For:

de-excite de-exciting

It can de-excite in a single step, re-emitting a photon of the same energy, or in several steps.

From Textbooks ● Aug. 12, 2015

Once it is excited, the atom can de-excite in several ways, one of which is to re-emit a photon of the same energy as excited it, a single step back to the ground state.

From Textbooks ● Aug. 12, 2015

Since the states slowly de-excite over centuries, the amount of thermoluminescence decreases with age, making it possible to use this effect to date and authenticate antiquities.

From Textbooks ● Aug. 12, 2015

Once excited, an atom or molecule will usually spontaneously de-excite quickly.

From Textbooks ● Aug. 12, 2015

Excited helium atoms easily de-excite by transferring energy to neon in a collision.

From Textbooks ● Aug. 12, 2015

These energy levels are inhibited and are slow in de-exciting because their quantum numbers differ greatly from those of available lower levels.

From Textbooks ● Aug. 12, 2015