[{"word":"efficacy","phonetic":"/ˈɛf.ɪ.kə.si/","phonetics":[{"text":"/ˈɛf.ɪ.kə.si/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Ability to produce a desired effect under ideal testing conditions.","synonyms":[],"antonyms":[]},{"definition":"Degree of ability to produce a desired effect.","synonyms":[],"antonyms":[]}],"synonyms":["efficacity"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/efficacy"]}]