From Longman Dictionary of Contemporary EnglishRelated topics: Electrical, Electricity, Electricitycathodecath‧ode /ˈkæθəʊd $ -θoʊd/ noun [countable]TEE technical the negativeelectrode, marked (−), from which an electriccurrent leaves a piece of equipment such as a batteryOPP anodeExamples from the Corpuscathode• Indeed, much development work is required before cathoderaytube performance can be attained.• The palladiumcathode was charged with dissolvedhydrogen.• But it was Jen's cathodefame which burst into every restaurant, flashed into every club.• Thus, reduction takes place at the cathode. 3.• When oxygendiffuses into the buffer from a sample, it is reduced at the cathode.• On average, the electrons travel from the cathode to the anode.• Hence when a current is applied, the positively charged ions move toward the cathode carrying water molecules with them.Origincathode(1800-1900)Greekkathodos"way down", from kata- ( → CATACLYSM) + hodos"way"