What is indicated by the suffix "-osis"?

The suffix "-osis" is commonly used in medical terminology to denote a condition or process, often one that is abnormal or unhealthy. It indicates a state or condition that affects a particular part of the body. For example, "sclerosis" refers to the hardening of tissue, while "neurosis" refers to a condition involving emotional or psychological disturbances. This understanding is vital in recognizing and interpreting various medical terms accurately.

The other options do not align with the meaning of "-osis." The suffix that refers to the study of a subject is typically "-ology." Inflammation is indicated by the suffix "-itis," while the study of organs is not specifically denoted by any common suffix but could be associated with "-ology" or other terms related to anatomy and physiology. Understanding this distinction is crucial in medical vocabulary, as it allows for precise communication about patient conditions and treatments.