Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Bone, coccygeal
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Bone, coccygeal: The small tail-like bone at the bottom of the spine very near to the anus. The coccyx is made up of 3-5 rudimentary vertebrae. It is the lowest part of the spinal column.
The word "coccygeal" comes from the Greek "kokkyx" meaning "cuckoo bird." It got this name because it was thought to look like the bill of the cuckoo.