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cold-rolled

UK[ˌkəʊld ˈrəʊld]US[ˌkoʊld ˈroʊld]
adj

(of metal, especially steel) shaped into its final form by rolling at a temperature below its recrystallization point, resulting in a smooth, hard finish.

Morpheme Breakdown

cold
rolled
cold

low temperature

rolled

shaped by rollers

Etymology

The term is a modern industrial compound, combining two established English words to describe a specific metallurgical process. The first element, 'cold', distinguishes the process from 'hot-rolling', indicating it occurs at or near room temperature, which prevents recrystallization of the metal. The second element, 'rolled', directly references the mechanical action of passing the metal between heavy rollers to reduce its thickness and shape it. The compound's logic is transparent: it literally means 'rolled while cold,' a process which increases the metal's strength and hardness while giving it a smooth, precise finish.

Analysis

Structure: cold (low temperature) + rolled (shaped by rollers) - cold: From Old English cald/ceald, of Germanic origin; related to Dutch koud and German kalt. Functions as an adjective describing low temperature. - rolled: From the past participle of the verb roll, from Old French roller, from Latin rotulus, a diminutive of rota ('wheel'). Functions as a verb-derived adjective describing the action of shaping by passing through rollers.

Examples

The chassis is made from high-strength cold-rolled steel.

Cold-rolled sheets have a better surface finish than hot-rolled ones.

This manufacturing step involves annealing the cold-rolled metal to soften it.

cold-rolled – Meaning, Etymology & Word Origin | OpenEtymology