cobbing

[ kob-ing ]
/ ˈkɒb ɪŋ /

noun Metallurgy.

old refractory material removed from furnaces.

Origin of cobbing

1760–70; cob (v.) to break up, special use of cob + -ing1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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