Webster’s Revised Unabridged Dictionary · 1913
Shadrach
Sha′drach (shā′drăk), n. (Metal.) A mass of iron on which the operation of smelting has failed of its intended effect; — so called from Shadrach, one of the three Hebrews who came forth unharmed from the fiery furnace of Nebuchadnezzar. (See Dan. iii. 26, 27.)