Noun: roller coaster 'row-lu(r),kow-stu(r)
- Elevated railway in an amusement park (usually with sharp curves and steep inclines)
"The children screamed with excitement as they rode the roller coaster";
- big dipper, chute-the-chute
- Anything characterized by abrupt and extreme changes (especially up and down)
"the economy has been on a roller coaster all year"
Derived forms: roller coasters
Type of: el [US], elevated, elevated railroad, elevated railway, overhead railway, ride, Sturm und Drang, turbulence, upheaval
Encyclopedia: Roller coaster