Dictionary![]() ![]() cru•ci•blePronunciation: (krOO'su-bul), [key] —n. 1. a container of metal or refractory material employed for heating substances to high temperatures. 2. Metall.a hollow area at the bottom of a furnace in which the metal collects. 3. a severe, searching test or trial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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