Roller-coaster
[roh-ler-koh-ster, roh-li-] /ˈroʊ lərˌkoʊ stər, ˈroʊ lɪ-/
verb (used without object)
1.
to go up and down like a roller coaster; rise and fall:
a narrow road roller-coastering around the mountain; a light boat roller-coastering over the waves.
2.
to experience a period of prosperity, happiness, security, or the like, followed by a contrasting period of economic depression, despair, or the like:
The economy was roller-coastering throughout most of the decade.
adjective
3.
of, relating to, or characteristic of a roller coaster.
4.
resembling the progress of a ride on a roller coaster in sudden extreme changeableness.
roller coaster
noun
1.
a small gravity railroad, especially in an amusement park, having a train with open cars that moves along a high, sharply winding trestle built with steep inclines that produce sudden, speedy plunges for thrill-seeking passengers.
2.
a car or train of cars for such a railroad.
3.
any phenomenon, period, or experience of persistent or violent ups and downs, as one fluctuating between prosperity and recession or elation and despair.
roller coaster
noun
1.
another term for big dipper
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noun 1. a game similar to ice hockey played on roller skates.
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noun 1. any mill that pulverizes, flattens, or otherwise changes material, as grain, by passing it between rolls.
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noun 1. a rink for roller-skating.