[{"word":"plesiosaur","phonetic":"/ˈpliːsiəsɔːɹ/","phonetics":[{"text":"/ˈpliːsiəsɔːɹ/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Any of several extinct marine reptiles, of the order Plesiosauria, from the Jurassic and Cretaceous periods.","synonyms":["plesiosaurus"],"antonyms":[]}],"synonyms":["plesiosaurus"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/plesiosaur"]}]