<electronics> A sub-atomic particle with a negative quantised charge. A flow of electrical current consists of the unidirectional (on average) movement of many electrons. The more mobile electrons are in a given material, the greater it electrical conductance (or equivalently, the lower its resistance).

(01 Mar 1995)

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<chemistry, physics> A stable atomic particle that has a negative charge, the flow ofelectrons through a substance constitutes electricity.

(19 Jan 1998)