Symptom

[Sarah]

Any affection which accompanies disease; a perceptible changein the body or its functions, which indicates disease, or the kind orphases of disease; as, the causes of disease often lie beyond oursight, but we learn their nature by the symptoms exhibited.Like the sick man, we are expiring with all sorts of good symptoms.Swift.

[Kai]

A physical or mental feature which is regarded as indicating a condition of disease, particularly such a feature that is apparent to the patient.