from the GNU version of the Collaborative International Dictionary of English
- A railway passenger car made so as to facilitate seeing the scenery en route; a car open, or with glass sides, or with a kind of open balcony at the rear.
from The Century Dictionary and Cyclopedia
- n. A railroad-car with glass or open sides to enable the occupants to observe the scenery, inspect the track, etc. [U. S.]
Sorry, no etymologies found.