 Terms commonly used to describe the condition include "herniated disc", "prolapsed disc", "ruptured disc", and "slipped disc".Other conditions that are closely related include disc protrusion, radiculopathy (pinched nerve), sciatica, disc disease, disc degeneration, degenerative disc disease, and black disc (a totally degenerated spinal disc).The popular term "slipped disc" is a misnomer, as the intervertebral discs are tightly sandwiched between two vertebrae to which they are attached, and cannot actually "slip", or even get out of place.