[{"word":"crucible","phonetic":"/ˈkɹuː.sɪ.bəl/","phonetics":[{"text":"/ˈkɹuː.sɪ.bəl/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A cup-shaped piece of laboratory equipment used to contain chemical compounds when heating them to very high temperatures.","synonyms":[],"antonyms":[]},{"definition":"A heat-resistant container in which metals are melted, usually at temperatures above 500°C, commonly made of graphite with clay as a binder.","synonyms":[],"antonyms":[]},{"definition":"The bottom and hottest part of a blast furnace; the hearth.","synonyms":[],"antonyms":[]},{"definition":"A very difficult and trying experience, that acts as a refining or hardening process.","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/crucible"]}]