[{"word":"ionosphere","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.","synonyms":[],"antonyms":[]},{"definition":"The similar region of the atmosphere of another planet.","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/ionosphere"]}]