unipolar lead

[ lēd ]


A lead of an electrocardiograph in which one electrode is placed on the chest in the vicinity of the heart or on one of the limbs, while the other is placed at an area of zero potential.
A record obtained from such a lead.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.