Princeton's WordNet(4.00 / 1 vote)Rate this definition: 1  indictment, bill of indictment(noun) a formal document written for a prosecuting attorney charging a person with some offense. 2  indictment(noun) an accusation of wrongdoing. the book is an indictment of modern philosophy.
1 Sports like gymnastics and rowing that require athletes to bend backward a lot can also cause back injuries.  Discs that have degenerated (broken down) over time and degenerative arthritis of the spine bones (vertebrae) are the most common causes of chronic low back pain.
If the back is properly arched, bumps will cause it to flex slightly in the direction of a bit more arch; this is harmless. If you ride swaybacked, bumps will cause the back to bow even farther in the forward direction, which can lead to severe lumbar pain, or even serious injury.