Dictionary
de•fi•bril•la•tor
Pronunciation: (dē-fī'bru-lā"tur, -fib'ru-), [key]—
n. Med.
an agent or device for arresting fibrillation of the atrial or ventricular muscles of the heart.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.