an·ode 
(ănōd′)
(ănōd′)n.
1. A positively charged electrode, as of an electrolytic cell, storage battery, diode, or electron tube.
2. The negatively charged terminal of a primary cell or of a storage battery that is supplying current.
[Greek anodos, a way up : ana-, ana- + hodos, way.]
a·nodic (ə-nŏdĭk), a·nodal (ə-nōdl) adj.
a·nodi·cal·ly, a·nodal·ly adv.