alternating current

noun

🔊/ˌɔːltəneɪtɪŋ ˈkʌrənt/

🔊/ˌɔːltərneɪtɪŋ ˈkɜːrənt/

[uncountable, countable]

(abbreviation AC)

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an electric current that changes its direction at regular intervals many times a second 交流；交流电流compare direct current