water hammer pulse

A booming, bounding, or pistol-shot-like sound heard by auscultation in aortic regurgitation or in a large patent ductus arteriosus—PDA
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

water hammer pulse

Collapsing pulse A booming, bounding, or pistol-shot-like sound auscultated in aortic regurgitation or in a large patent ductus arteriosus–PDA; the so-called 'small water hammer pulse' is due to a brisk rise in systemic arterial pressure in the face of normal pulse pressure
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.