Topic: OCEANOGRAPHY
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roll‧er
[countable]
[countable]1TI a piece of equipment consisting of a tube-shaped piece of wood, metal etc that rolls over and over, used for painting, crushing, making things smoother etc :
a paint roller
a garden roller ➔ steamroller1 (1)
a paint roller
a garden roller2TT [usually plural] a tube-shaped piece of metal or wood, used for moving heavy things that have no wheels :
The boats are taken down to the sea on rollers.
The boats are taken down to the sea on rollers.3DC a small plastic or metal tube used for making hair curl [= curler]
4HEO a long powerful wave :
great Atlantic rollers
great Atlantic rollers

