Quincke's pulse

n.

Capillary pulsation, as shown by alternate reddening and blanching of the nailbed with each heartbeat; it is a sign of arteriolar dilation and aortic insufficiency.Quincke's sign

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