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Etymology: L, bulbus, swollen root; Gk, polios, gray, myelos, marrow, itis, inflammation
a form of poliomyelitis that involves the medulla oblongata and gradually progresses to bulbar paralysis, with respiratory and circulatory failure.
Poliomyelitis in which the gray matter of the medulla oblongata is involved, affecting respiratory nerves and muscles supplied by the cranial nerves, resulting in paralysis and usually respiratory failure.
See also: poliomyelitis