CRUCIBLE n.
trial; as, the crucible of affliction. Hessian crucible (Chem.), a cheap, brittle, and fragile, but very refractory crucible, composed of the finest fire clay and sand, and commonly used for a single heating; -- named from the place of manufacture.
F n.
most closely related to p,k,v, and b; as in E. five, Gr. f, L. lupus, Gr. fox, vixen ; fragile, break ; fruit, brook, v. t.; E. bear, L. ferre. See Guide to Pronunciation, sq. root 178, 179, 188, 198, 230.