The electrode where reduction occurs in an electrochemical cell. In electrolysis or electroplating, the cathode is where metal ions are deposited as solid metal.

电化学电池中发生还原反应的电极。在电解或电镀中，阴极是金属离子沉积为固体金属的地方。(diàn huà xué diàn chí zhōng fā shēng huán yuán fǎn yìng de diàn jí. zài diàn jiě huò diàn dù zhōng, yīn jí shì jīn shǔ lí zǐ chén jī wéi gù tǐ jīn shǔ de dì fāng.)