Meaning & use
Excitation
Last updated
The action of stimulating or arousing a response, especially the process by which a cell, atom, or system is raised to a higher energy or activity state.
See it in a sentence
Excitation of the neuron triggers the release of neurotransmitters into the synapse.
The laser works by causing excitation of electrons to a higher energy level before they fall back and emit light.
A note on using this word
In everyday speech 'excitement' is preferred; 'excitation' is largely reserved for technical contexts in physics, biology, and engineering.
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