cathode

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cath·ode / ˈka[unvoicedth]ˌōd/ • n. the negatively charged electrode by which electrons enter an electrical device. The opposite of anode. ∎  the positively charged electrode of an electrical device, such as a primary cell, that supplies current.DERIVATIVES: cath·o·dal / ˈka[unvoicedth]ˌōdl/ adj.ca·thod·ic / kaˈ[unvoicedth]ädik/ adj.

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