electrode
n.
"one of the two ends of an open electrical circuit," 1834, coined by English physicist and chemist Michael Faraday (1791-1867) from electro- + Greek hodos "way" (see cede) on the same pattern as anode, cathode.
〔李〕n. 电极 [electr- =electricity] ←-ode [GK] =way of electricity，electrode表示“电极”