radio opacity
/ˈreɪdioʊ oʊˈpæsəti/
noun
- The property of a substance that blocks or absorbs X-rays or other radiation, making it appear white or light on a radiograph (X-ray image).
- The dentist checked the radio-opacity of the filling material.
- Bones have high radio-opacity, so they show up clearly on X-rays.
- Metal objects have strong radio-opacity and can be seen easily in scans.