f wave


A pattern of irregular undulations of the base line in an electrocardiogram that is indicative of atrial fibrillation.

Medicine definitions for f wave (2 of 2)

F wave


A pattern of regular, rapid atrial waves in an electrocardiogram, indicative of atrial flutter.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.