(automotive) One that rolls coal; one that produces copious amounts of partially burnt fuel as black smoke in automotive exhaust on purpose.

Alternative form of dandy roller

plural of roller sport

A cylinder with a bumpy surface, rolled back and forth under the foot as a form of therapeutic massage.

Coracias benghalensis, a bird that occurs widely from West Asia to the Indian subcontinent.

plural of roller bottle

A type of chain drive used to transmit mechanical power in many kinds of machinery, such as conveyors and bicycles, consisting of a series of short cylindrical rollers held together by side links and driven by a sprocket.

plural of roller chain

Any sport requiring roller skates (including quad and inline skates)

plural of roller shoe