Dalrymple's sign

[dăl-rĭmpəlz, dălrĭm-]
n.
  1. An indication of Graves' disease in which there is abnormal wideness of the palpebral fissures with retraction of the upper lid of the eye.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.