Definition of Coccyx
Coccyx: The small tail-like bone at the bottom of the spine, very near the anus. It is the lowest part of the spinal column. Also known as tailbone.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 3/19/2012
Medical Dictionary Definitions A - Z
Search Medical Dictionary
eMedicineHealth Top News
Chronic Pain/Back Pain
Find tips and advances in treatment.