Quick definitions from WordNet (broken-backed)
▸ adjective: (of a ship) so weakened as to sag at each end
▸ adjective: having the spine damaged ("A broken-backed book")
▸ adjective: (of a horse) having bones of the back united by a bony growth
▸ adjective: (of a ship) so weakened as to sag at each end
▸ adjective: having the spine damaged ("A broken-backed book")
▸ adjective: (of a horse) having bones of the back united by a bony growth