Which term denotes a record or radiographic image in medical terminology?

The term that denotes a record or radiographic image in medical terminology is the suffix “-gram.” This suffix is derived from the Greek word “gramma,” meaning something written or drawn. In a medical context, it is commonly used to indicate a written record or image produced by various types of diagnostic tests. For instance, in terms like "electrocardiogram" (ECG), it refers to the graphical representation of the electrical activity of the heart. Similarly, a "mammogram" is a specific type of X-ray image used for breast imaging. This shows the close association of the suffix with the concept of pictorial or written records in the medical field.

The other options represent different meanings: “-plasia” pertains to growth or development, typically used to describe the formation of tissues or organs, “-pathy” relates to disease or disorder, and “-opsy” indicates the examination of a specimen, particularly in reference to biopsies and other types of surgical examinations. Thus, when considering definitions within medical terminology, "-gram" distinctly aligns with the idea of recording or imaging.