roller

noun (MACHINE/DEVICE)

/ˈrəʊ.lər/

/ˈroʊ.lɚ/

Definition

› [C] a tube-shaped object in a machine that turns over and over in order to carry things along or press them down or together: As the hot metal passed between the huge rollers it was pressed into thin sheets.Machine parts › [C usually plural] a tube-shaped device, often heated, that women use to curl their hair: She answered the door with her rollers in.Care for the hair › [C] a heavy machine used to make surfaces smooth and flat: The men used a roller to flatten the tarmac. → See also steamroller nounMachinery and machinesHousehold equipment and domestic choresTrucks, vans and caravans

(Definition of roller noun (MACHINE/DEVICE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)