[{"word":"pyroclastic","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A rock mostly composed of rock fragments of volcanic origin","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]},{"partOfSpeech":"adjective","definitions":[{"definition":"Mostly composed of rock fragments of volcanic origin or comminuted during an eruption.","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/pyroclastic"]}]