Uhthoff sign

[ ōōt′hŏf ]

n.

An indication of multiple sclerosis in which vasodilation from exposure to heat or from exertion may cause transient visual impairment or weakness.

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Nearby words

ullage rocket, ullswater, ulluco, ulm, ulmaceous, Uhthoff sign, ulnad, ulnar artery, ulnar collateral artery, ulnar extensor muscle of wrist, ulnar flexor muscle of wrist

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.