[{"word":"periastron","phonetic":"/pɛɹɪˈæstɹən/","phonetics":[{"text":"/pɛɹɪˈæstɹən/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"That point of the orbit of a celestial body which is closest to the star around which the body is orbiting.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["apastron"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/periastron"]}]