'flatcar' definitions:

Definition of 'flatcar'

(from WordNet)
noun
Freight car without permanent sides or roof [syn: flatcar, flatbed, flat]

Definition of 'flatcar'

From: GCIDE
  • flatcar \flat"car`\ n. (Railroads) a railroad car without permanent sides or roof.
  • Syn: flat. [WordNet 1.5]