Horner's syndrome

Medical Dictionary

Horner's syndrome n.
A syndrome caused by a lesion in the sympathetic nervous system, especially the cervical chain or central pathways, and characterized by drooping upper eyelid, pupillary contraction, absence of sweating, and receding eyeball.

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WordNet
horner's syndrome

noun
a pattern of symptoms occurring as a result of damage to nerves in the cervical region of the spine (drooping eyelids and constricted pupils and absence of facial sweating) 
WordNet® 3.0, © 2006 by Princeton University.
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