Meaning of local action in English:

local action


  • Chemical activity that occurs on the surface of an electrode in a cell or battery, as distinct from that involved in the flow of current or the maintenance of a potential.

    Local action occurs chiefly as a result of impurities in the metal of the electrode, which effectively form miniature voltaic cells with the bulk metal; the result is corrosion of the electrode even when no current is being drawn.


Mid 19th century; earliest use found in Michael Faraday (1791–1867), natural philosopher, scientific adviser, and Sandemanian.