What is the study of signs and symptoms in medicine known as?

The study of signs and symptoms in medicine is known as "semantics." This term refers to the examination of how different symptoms manifest, what they indicate regarding a patient's health, and the overall implications they may have for diagnosis and treatment. Understanding symptoms is crucial for healthcare professionals as it helps them to piece together a patient's medical history, leading to accurate diagnoses and effective treatment plans.

The option that was chosen accurately reflects the significance of this study in the medical field. Other terms listed do not relate to this specific branch of medicine. For instance, sequestration typically pertains to the removal or isolation of something from a group; senescence refers to the process of aging; and schistglassia does not correspond to any established medical terminology relevant to the study of signs and symptoms.