infection of one or both kidneys, usually involving both the pelvis and the functional tissue
Origin of pyelonephritisfrom Classical Greek pyelos (see pyelitis) + nephritis
Inflammation of the kidney and its pelvis, caused by bacterial infection.
Origin of pyelonephritisGreek puelos basin ; see pyelitis . nephritis
(countable and uncountable, plural pyelonephritides)
pyelo- +"Ž nephritis