n. A railroad freight car without sides or a roof.
the GNU version of the Collaborative International Dictionary of English
n. a railroad car without permanent sides or roof.
The Century Dictionary and Cyclopedia
n. A railroad-car consisting of a platform without sides or top; a platform-car.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. freight car without permanent sides or roof
Word Usage
"Still, that train derailing in the Arizona desert and a flatcar dumping a steam tractor in my Cinerama-enhanced lap is fixed forever and all time in my brain."