Definition of "wagon-top" [wagon-top]

• The part of a locomotive-boiler, over the fire-box, which is elevated above the rest of the shell. Its purpose is to provide greater steam-room. (noun)

The Century Dictionary (Public Domain)

• "She was my mother; that I knew as a matter of course, just as I knew, when I glanced along the canvas tunnel of the wagon-top, that the shoulders of the man on the driver's seat were the shoulders of my father."
• "I could see driving one – especially if I could get a tarp wagon-top made for the little pickup."
• ""It was a wagon-top," explained Rhoda, twitching her already nervous pony around."