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knobbling roll

American  
[nob-ling] / ˈnɒb lɪŋ /

noun

Metalworking.

  1. a roll for a rolling mill, having a series of regularly shaped projections and depressions on its face.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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