- a railroad having locomotives with a cogged center driving wheel engaging with a cogged rail, to provide sufficient traction for climbing steeper grades than is possible with ordinary wheels.
Origin of cog railway
An Americanism dating back to 1895–1900
Also called rack railway.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- mainly US other terms for rack railway