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prepulse
prepulse n.
Brit. 
/ˈpriːpʌls/
, /ˈpriːpʌls/U.S. /ˈpriˌpəls/
a preliminary pulse of electricity./ˈpriˌpəls/ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > electricity in living organisms > [noun] > preliminary pulse
prepulse1952
1952 Electronic Engin. 24 437/1 A pre-pulse..must occur at least 0.5 microsecond before the beginning of the waveform to be monitored.
1978 Nature 2 Feb. 474/1 A 25–50-ms conditioning prepulse was used to determine the relationship between inactivation and membrane potential before and after glyoxal treatment.
1991 Nature 24 Jan. 307/1 We applied depolarizing prepulses to different potentials and then determined, with a subsequent test pulse, the fraction of channels inactivated by the prepulse.
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