from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A highly infectious viral disease that chiefly affects children and, in its acute forms, causes inflammation of motor neurons of the spinal cord and brainstem, leading to paralysis, muscular atrophy, and often deformity. Through vaccination, the disease is preventable. Also called infantile paralysis.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Acute infection by the poliovirus, especially of the motor neurons in the spinal cord and brainstem, leading to muscle weakness, paralysis and sometimes deformity.
from The Century Dictionary and Cyclopedia
- n. Inflammation of the gray matter of the spinal cord.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an acute viral disease marked by inflammation of nerve cells of the brain stem and spinal cord
New Latin : Greek polios, gray; see pel-1 in Indo-European roots + myelitis.(American Heritage® Dictionary of the English Language, Fourth Edition)