(Greek: a suffix; inflammation, burning sensation; by extension, disease associated with inflammation)
This suffix has come to mean "inflammation of" but originally it meant "pertaining to" or "of the". The Greek word nosos ["disease"] was either expressed or understood, although it might not be included with the basic element. For example, bursitis nosos would mean "disease of the bursa".
2. In Hippocrates classification, acute mental disease with fever. The other classes were mania (acute mental disease without fever); melancholia (chronic mental disturbances of various kinds, not limited to mood disorders); epilepsy (approximately the same as in current use); hysteria (somatoform disturbances, especially paroxysmic dyspnea, pain, and convulsions); and Scythian disease (transvestitism).
"Usually, pyelonephritis shows an increase in circulating white cells in the blood (leucocytosis)."2. Bacterial infection of the kidney that can be acute (sudden) or chronic (slow, subtle, and stubborn): "Pyelonephritis is usually a result of bacteria going up from the bladder and then on into the ureters to infect the kidneys."
"The symptoms of pyelonephritis include flank (side) pain, fever, shaking chills, sometimes foul-smelling urine, urgency (to urinate), frequency (urinating), and general malaise."
Pylephletitis combines pyle-, "a reference to the entry of the portal vein into the liver" + phlebos, "vein".