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action potential

noun

Definition of action potential

  1. :  a momentary reversal in electrical potential across a plasma membrane (as of a neuron or muscle fiber) that occurs when a cell has been activated by a stimulus



1926

First Known Use of action potential

1926


Medical Dictionary

action potential

noun

Medical Definition of action potential

  1. :  a momentary reversal in the potential difference across a plasma membrane (as of a nerve cell or muscle fiber) that occurs when a cell has been activated by a stimulus—called also spike potential; compare resting potential; see afterpotential, generator potential, prepotential




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