In medical terminology, what does the suffix "-ine" indicate?

The suffix "-ine" indicates "pertaining to," which is often used to form adjectives describing characteristics or qualities related to a specific substance or process. In medical terminology, this suffix helps to connect anatomical structures, conditions, and other medical terms to their relevant contexts. For example, "serotonin" refers to a substance that is "pertaining to" serotonin, a neurotransmitter, while "cardiac" describes something that relates to the heart. This suffix enhances clarity in medical communication by specifying the relationship between terms and their meanings, which is crucial in understanding patient care and medical documentation.