Meaning of ROLLER in English

ROLLER

/ ˈrəʊlə(r); NAmE ˈroʊ-/ noun

1.

a piece of wood, metal or plastic, shaped like a tube, that rolls over and over and is used in machines, for example to make sth flat, or to move sth :

the heavy steel rollers under the conveyor belt

2.

(often in compounds) a machine or piece of equipment with a part shaped like a tube so that it rolls backwards and forwards. It may be used for making sth flat, crushing or spreading sth :

Flatten the surface of the grass with a roller.

a paint roller

—see also steamroller

3.

a piece of wood or metal, shaped like a tube, that is used for moving heavy objects :

We'll need to move the piano on rollers.

4.

a long, powerful wave in the sea / ocean :

Huge Atlantic rollers crashed onto the rocks.

5.

a small plastic tube that hair is rolled around to give it curls

SYN curler :

heated rollers

Her hair was in rollers .

—see also high roller

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.