excitation

American  

[ek-sahy-tey-shuhn, -si-] / ˌɛk saɪˈteɪ ʃən, -sɪ- /

noun

1. the act of exciting.

2. the state of being excited.

3. Electricity.

   1. the application of voltage to an electric device, as an electron-tube circuit, an antenna, or a dynamotor, often for producing a magnetic field in the device.

   2. the voltage applied.

4. Physics. a process in which a molecule, atom, nucleus, or particle is excited.

5. Also called drive.  Electronics. the varying voltage applied to the control electrode of a vacuum tube.

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excitation British  

/ ˌɛksɪˈteɪʃən /

noun

1. the act or process of exciting or state of being excited

2. a means of exciting or cause of excitement

3. 1. the current in a field coil of a generator, motor, etc, or the magnetizing current in a transformer

   2. ( as modifier )

      an excitation current

4. the action of a stimulus on an animal or plant organ, inducing it to respond

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excitation Scientific  

/ ĕk′sī-tā′shən /

1. The activity produced in an organ, tissue, or cell of the body that is caused by stimulation, especially by a nerve or neuron.

2. Compare inhibition

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Other Word Forms

• preexcitation noun
• superexcitation noun

Etymology

Origin of excitation

1350–1400; Middle English excitacioun < Late Latin excitātiōn- (stem of excitātiō ), equivalent to Latin excitāt ( us ) (past participle of excitāre; excite ) + -iōn- -ion

Example Sentences

To understand how the cavities affect light emission, the team measured photoluminescence from WS2 under laser excitation while varying the cavity depth.

From Science Daily

"There are a lot of the fundamental excitations, like lattice vibrations and magnetic processes, and all these collective modes that happen at terahertz frequencies," von Hoegen says.

From Science Daily

It also represents the final elementary excitation of the tin-133 nucleus, helping complete the nuclear structure picture and improving the accuracy of theoretical calculations.

From Science Daily

The particle is a traveling excitation of that field.

From Science Daily

Kaman, a materials science and engineering graduate student working in the research group of professor Axel Hoffmann, realized that both graphene electrons and microscopic magnetic excitations in so called magnonic materials behave like waves.

From Science Daily