broken-backed

1. Having a broken back.

   (of a horse) having bones of the back united by a bony growth

2. Drooping at each end because of a damaged spine.

   having the spine damaged

3. Decrepit, weakened.

   (of a ship) so weakened as to sag at each end

4. Of a war or warfare: continuing after the main force has been destroyed or significantly weakened, for example after a devastating nuclear strike.

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