E
Element
The generic word for the turnarounds, corkscrews and other effects designed into coasters.
ERT (Exclusive Ride Time)
The special "members-only" time parks establish for coaster clubs or other groups to ride coasters.
F
Family Coaster (or Junior)
A generally more tame ride than the thrill-seekers' behemoths.
First Drop
The initial and (generally) the biggest and fastest descent on a coaster.
Floorless
A coaster whose train has no floor. Essentially "flying seats," the train sits above the track and riders have nothing above or below them other than the seat itself.
Flying Coaster
The seats recline into a prone position and face backwards so that when the train inverts, riders are in a superhero-like flying position. The cars include harness-type safety restraints that can be a bit unnerving at first. Once you get past the initial fear, this is a very cool new coaster concept.
Fourth-Dimension
No, not the Outer Limits. A type of coaster in which the cars can spin completely around, independent of the track.
Freefall
Rides that are powered up and then freefall straight down. Are they coasters? That's a matter of some disagreement as some say the 400-plus foot Superman attraction at Six Flags Magic Mountain is either the world's tallest roller coaster or a very tall freefall attraction.
G
G-Forces
The forces, either negative or positive, that force riders out or pin them down into their seats. Brief bursts of moderate G-forces are coaster nirvana. Too little or too much is coaster purgatory.
Giga-Coaster
If a hypercoaster refers to coasters that surpass 200 feet, what do you call ones that break the 300-foot threshold? Cedar Point and ride manufacturer, Intamin AG, coined the term, Giga-Coaster, for mold-breaker Millennium Force. Like most hypercoasters, these behemoths are built for height, speed, acceleration, and intense G-forces. While they may have highly banked turns, they generally do not have any inversions.
Grab Bars
The handles to the side or front of riders that allow them to hang on for their dear lives.
Guide Wheels
Ever wonder why coaster trains don't fly off of their tracks? They have an extra set of guide wheels under the train that lock the cars to the track.
H
Head Choppers
A lovely expression used to describe the narrow openings into which Twister Coasters send their riders. Duck!
Heartline Roll (or Zero-G Roll)
An element in which the train twists but the riders' hearts stay roughly in line with the center of the curve.
Helix
A spiral section of track that turns into itself and is typically highly banked. It delivers high doses of lateral (side-to-side) G-forces. A double helix completes two 360-degree turns.
Hydraulic Launch
Most launched coasters use magnetic propulsion to shoot the trains out of the loading stations. Coasters such as Cedar Point's Top Thrill Dragster, however, use hydraulics to achieve the same effect.
Hypercoaster
Loosely defined as any coaster whose height exceeds 200 feet. Generally does not include any inversions. Hypercoasters are all about height, speed, acceleration, G-forces and airtime.
I
Impulse Coasters
Uses magnetic induction to launch trains forwards and backwards up a U-shaped track. Typically, one side of the track is a spiral, and the other side is straight. The ride usually cycles through five launches, each one progressively faster.
Inverted Coaster
The train hangs underneath the tracks, but unlike a suspended coaster, it cannot pivot freely. Also, inverted coasters have no floors and riders' legs dangle. Think of a ski lift gone haywire.
Inversion
An element that turns riders upside down
Invertigo
Like a Boomerang Coaster, but with inverted trains.

