noun
- the small triangular bone at the bottom of the spine in humans
Usage: anatomy
Examples
- She fell and bruised her tailbone.
- The doctor explained that the tailbone is made of fused vertebrae.
- Sitting on hard surfaces can cause tailbone pain.
- The tailbone is located at the very end of the spine.
- He injured his tailbone while skateboarding.
- The cushion helped relieve pressure on her tailbone.