noun 1. a disordered or incorrectly functioning organ, part, structure, or system of the body resulting from the effect of genetic or developmental errors, infection ...

disease /dis·ease/ (dĭ-zēz´) any deviation from or interruption of the normal structure or function of any body part, organ, or system that is manifested by a ...

Definition of DISEASE. 1. obsolete: trouble. 2: a condition of the living animal or plant body or of one of its parts that impairs normal functioning and is typically ...

A disease is an abnormal condition affecting the body of an organism. It is often construed to be a medical condition associated with specific symptoms and signs.

noun 1. Pathology, Psychiatry . a group of symptoms that together are characteristic of a specific disorder, disease, or the like. 2. a group of related or coincident ...

Disease: Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur ...

Allergy information includes articles on allergies, symptoms, treatment, medications, food allergies, and allergy relief.

dis·ease (d-z z) n. 1. A pathological condition of a part, organ, or system of an organism resulting from various causes, such as infection, genetic defect, or ...

syndrome /syn·drome/ (sin´drōm) a set of symptoms occurring together; the sum of signs of any morbid state; a symptom complex. See also entries under disease.

syn·drome (s n dr m) n. 1. A group of symptoms that collectively indicate or characterize a disease, psychological disorder, or other abnormal condition.