[{"word":"ultrasounds","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz.","synonyms":[],"antonyms":[]},{"definition":"The use of ultrasonic waves for diagnostic or therapeutic purposes.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["infrasound"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/ultrasound","https://en.wiktionary.org/wiki/ultrasounds"]}]