in Medicine, any circumstance which indicates the existence, nature, or stage of a disease. Pain, waking, drowsiness, convulsions, suppression of urine, difficulty of breathing and swallowing, coughs, distastes, nausea, thirsts, swoonings, faintings, loofenels, collyvenels, drynels and blackness of the tongue, are the principal symptoms of diseases. See MEDICINE, No. 41.