Anode Definition

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by Anne Marie Helmenstine, Ph.D.
Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels.
Updated March 06, 2017

Definition: An anode is the electrode where oxidation reactions take place. Anodes are positively charged and attract anions and expel electrons.