What does the suffix -logy signify?

The suffix -logy comes from the Greek word "logos," meaning "word" or "speech." In medical terminology, it signifies the "study of" a particular subject or field. For instance, in terms like "biology," which is the study of living organisms, or "cardiology," which is the study of the heart, the use of -logy indicates a systematic exploration or examination of the topic at hand.

Understanding this suffix is crucial for interpreting many medical terms where it signals a specific branch of study, enhancing one's ability to comprehend various medical fields and disciplines. The other provided options relate to different aspects of medical terminology but do not align with the meaning conveyed by -logy.