[{"word":"pegmatites","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica.","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/pegmatite","https://en.wiktionary.org/wiki/pegmatites"]}]