Real Dictionary

Guillain-Barré syndrome in British English
an acute neurological disorder of unknown cause, involving partial paralysis of several muscle groups and occurring rarely after certain viral infections and vaccinations
noun: an acute neurological disorder, usually following a virus or bacterial infection, that causes progressive muscle weakness and partial paralysis
noun: an uncommon, usually self-limited form of polyneuritis, occurring after a viral illness or immunization and manifested by loss of muscle strength, loss of or altered sensation and sometimes paralysis