foramen
/fəˈreɪmən/
noun
- A small opening, hole, or passage in a bone or other body part, through which nerves, blood vessels, or other structures pass.
- The dentist examined the foramen in the jawbone where the nerve enters.
- An X-ray showed a narrow foramen in the spine that might be pressing on a nerve.
- The skull has several foramina that allow blood vessels to reach the brain.