Noun
dome car (plural dome cars)
- (rail transport) A railroad passenger car with a glass observation dome.
1963 June, “The "Rheingold" beats the "Mistral"”, in Modern Railways, page 385:The "Rheinpfeil", from Dortmund to Munich, with which the "Rheingold" exchanges coaches at Duisburg, is now composed of similar air-conditioned stock, apart from a dome car, which continues to operate only between Dortmund and Basle; [...].