from The Century Dictionary and Cyclopedia
- n. In railway rolling-stock, an arrangement of springs, hangers, swinging-bolster, and other parts of a cartruck that enables the car-body to sway or swing laterally on the truck. A car-truck arranged in this way is called a swing-motion truck. See cut under car-truck.
Sorry, no etymologies found.
Combined with simultaneous advances in ball technology, swing-motion analysis, player training and agronomy, spring-like effect boosted the average drive on the PGA Tour an alarming 24 yards from 1995 to 2003.