electrodea rod through which electric charge enters or leaves a liquid or device during electrolysisIn a battery, the positive electrode is called the cathode and the negative one is the anode.NoteIn a battery, the positive electrode is called the cathode and the negative one is the anode.Elon.io is an online learning platformWe have an entire course teaching TOEFL Academic Vocabulary grammar and vocabulary.Start learning TOEFL Academic Vocabulary now