What does "radiographic density" indicate about a film?

Radiographic density specifically refers to the degree of blackening on a film as a result of exposure to x-rays. When x-rays pass through a subject and reach the film, they cause different levels of film darkening depending on the amount of radiation absorbed, which correlates to the density of the structures being imaged. Structures that absorb more radiation, such as bones, result in lighter areas on the film, while those that absorb less, like soft tissues, appear darker. Therefore, the denser the area of the film, the more blackened it will appear, indicating that it has been exposed to a significant amount of x-ray radiation. This understanding of radiographic density is critical for interpreting radiographs and assessing the quality and accuracy of the imaging process.