[{"word":"pf","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Pff","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]},{"partOfSpeech":"noun","definitions":[{"definition":"The ratio of the actual power to the apparent power in an alternating current power system; specifically, the cosine of the phase angle between the voltage and the current.","synonyms":[],"antonyms":[],"example":"The power factor is of interest because it is a measure of the power which does useful work."}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/pf","https://en.wiktionary.org/wiki/power%20factor"]}]