a rough bar of wrought iron, rolled from blooms of iron extracted from a puddling furnace.
Origin of muck bar
An Americanism dating back to 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for muck bar
Historical Examples of muck bar
The muck-bar made from the blooms was fibrous in fracture, and showed every appearance of good iron.