megacoaster means A rollercoaster with a height of between 200 and 299 feet.
Etymology
From mega- + coaster.
noun
- A rollercoaster with a height of between 200 and 299 feet.“Often, we've seen coaster fans line up to ride a new megacoaster, get their ride, and then spend the rest of the day repeat-riding the park's other, smaller, more rideable coasters.”