👉 Radiopaque is a medical term that refers to an object or substance that has high reflectivity, meaning it reflects light with a high intensity. It can be defined as having a higher reflectivity than non-radiopaque materials. Radiopacity is often used in radiography (X-ray imaging) and ultrasound to distinguish between different types of material. In medical imaging, radiopaque objects are typically those that have a high reflectivity or absorb light well, such as bone, teeth, organs, or other