[{"word":"a-c","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"An electric current in which the direction of flow of the electrons reverses periodically, such as sawtooth, sinusoidal or square wave current.","synonyms":[],"antonyms":[]},{"definition":"An electric current in which the direction of flow of the electrons reverses periodically by a sinusoidal law, hence having an average of zero, with positive and negative values (with a frequency of 50 Hz in Europe, 60 Hz in the US, 400 Hz for airport lighting, and some others); especially such a current produced by a rotating generator or alternator.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/a-c","https://en.wiktionary.org/wiki/alternating%20current"]}]