noun🔗ShareA cup-shaped piece of laboratory equipment used to contain chemical compounds when heating them to very high temperatures."The chemist carefully placed the powdered sample into the crucibles before putting them in the furnace. "utensilmaterialchemistrysciencetechnicalChat with AIVocabulary GamePractice Reading
noun🔗ShareA heat-resistant container in which metals are melted, usually at temperatures above 500°C, commonly made of graphite with clay as a binder."The metalworkers carefully poured the molten gold from the crucibles into molds to make jewelry. "materialutensiltechnologychemistryscienceindustryChat with AIVocabulary GamePractice Reading
noun🔗ShareThe bottom and hottest part of a blast furnace; the hearth."The intense heat within the crucibles of the blast furnace melts the iron ore. "materialindustrymachineChat with AIVocabulary GamePractice Reading
noun🔗ShareA very difficult and trying experience, that acts as a refining or hardening process.""Boot camp was one of the crucibles that transformed ordinary citizens into resilient soldiers." "sufferingsituationcharacterconditionliteraturemindemotionprocesshistoryChat with AIVocabulary GamePractice Reading
