See Also: Depolarisation(medicine)
dendritic depolarisation(medicine)
membrane depolarisation(medicine)

percentage (iou) and Depolarisation (medicine)


percentage (iou)



percentage noun. L18.
[from PER CENT + -AGE.]
A rate or proportion per cent; a quantity or amount reckoned as so many hundredth parts of another, esp. of the whole of which it is a part; a part considered in its quantitative relation to the whole, a proportion (of something). L18.
Theatre Research International A slightly higher percentage of his plays appear to reach the stage.
fig. Personal benefit or advantage; probability of a successful outcome (in a situation, course of action, etc.). colloq. M19.
J. Porter There was no percentage in hanging around the airport.
Phrases: play the percentages slang play safely or methodically with regard to the odds in favour of Success.
Comb.: percentage point a unit used in expr. the numerical difference between two percentages.
percentage-wise adverb as a percentage; relatively: E20.

Depolarisation (medicine)


depolarisation


The process or act of neutralising polarity, depriving of polarity, or the result of such action; reduction to an unpolarised condition.

<physiology> The reversal of the resting potential in excitable cell membranes when stimulated i.e., the tendency of the cell membrane potential to become positive with respect to the potential outside the cell. A positive shift in a cells resting potential (that is normally negative), thus making it numerically smaller and less polarized, for example 90mV to 50mV.

<optics> Depolarisation of light, a change in the plane of polarization of rays, especially by a crystalline medium, such that the light which had been extinguished by the analyser reappears as if the polarization had been anulled. The word is inappropriate, as the ray does not return to the unpolarised condition.

Origin: Cf. F. Depolarisation.