Relating to the movement or behavior of organisms in response to electrical fields or currents.
From electro- (Greek elektron, 'amber') + tactic (Greek taktikos, from tassein meaning 'to arrange'). The term developed in biology and ecology during the 20th century.
Many aquatic organisms like fish and eels exhibit electrotactic behavior, moving toward or away from electrical fields—some scientists use this property to guide or deter fish from dangerous areas, which is called 'electrical guidance systems.'
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