action potential

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WordNet Dictionary
	Definition:		[n]  the local voltage change across the cell wall as a nerve impulse is transmitted
	See Also:		impulse, nerve impulse
Biology Dictionary
	Definition:		The sequential, electrochemical polarization and depolarization that travels across the membrane of a nerve cell (neuron) in response to stimulation (touch, pain, cold, etc.)
	Synonyms:		nerve impulse