[{"word":"mudstones","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A fine-grained sedimentary rock whose original constituents were clays or muds.","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/mudstone","https://en.wiktionary.org/wiki/mudstones"]}]