Uhthoff sign

[ ōōthŏf ]


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

Nearby words

  1. ullage rocket,
  2. ullswater,
  3. ulluco,
  4. ulm,
  5. ulmaceous,
  6. ulnad,
  7. ulnar artery,
  8. ulnar collateral artery,
  9. ulnar extensor muscle of wrist,
  10. 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.