A ceramic or metal container in which metals or other substances may b. Meaning, pronunciation and example sentences, English to English reference content. Crucible looks like it should be closely related to the Latin combining form cruc- ( cross ), but it isn't. It was forged from the Medieval Latin crucibulum, a noun. Thank the nonexistent gods of Karl Marx that Arthur Miller wrote The crucible so I could imagine the blacklist. crucible heating sulfur in a crucible cru·ci·ble (kro͞o′sə-bəl) n. 1. A vessel made of a refractory substance such as graphite or porcelain, used for melting. A crucible is a container that can withstand very high temperatures and is used for metal, glass, and pigment production as well as a number of modern laboratory. A crucible is a melting pot used for extremely hot chemical reactions — the crucible needs to be melt-proof. Literally, a crucible is a vessel used for very hot. Seen and Heard. What made you want to look up crucible? Please tell us where you read or heard it (including the quote, if possible). crucible meaning, definition, what is crucible: a container in which metals or other substances can be heated to very high temperatures. Learn more. Definition of crucible written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count. Definition of crucible in the Definitions.net dictionary. Meaning of crucible. What does crucible mean? Information and translations of crucible in the most.