Words / B2

AN-ohd/ˈænəʊd/

The anode is the electrode at which oxidation occurs in a cell; in electrolysis it is the positive electrode: the anode; anode sludge. The cathode is the opposite electrode; electrode is the general term. Label the anode on the cell diagram, then the ion movement. Mix-up: anode vs anode as “a node”; cathode; do not write anode for a wire that is not an electrode in the circuit.

Meaning

The electrode at which oxidation occurs in a cell; the positive electrode in an electrolytic cell.

Examples

• “Label the anode on the cell diagram, then the ion movement, the chemistry paper said.”
• “Anode mud featured in the copper-refining case, which is the industrial sense — still name the metal if given.”

Good to know

the anode; at the anode; anode sludge / mud. Opposite: cathode. Process: oxidation at the anode. Trap: a random wire / a node. Chemistry. The electrode where oxidation happens — label + or the ion flow as the paper requires.

Near in meaning

positive electrode, electrode, oxidation site

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