WordReference Random House Unabridged Dictionary of American English © 2026
cen′ter pin′, [Railroads.]
- Rail Transporta cylindrical device passing through the center plates of both the body bolster and the truck bolster, permitting the truck to swivel beneath the car body while the stress is taken by the center plate.
- 1795–1805
'center pin' also found in these entries (note: many are not synonyms or translations):