from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Slowness of the heart rate, usually fewer than 60 beats per minute in an adult human.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The condition of having a slow heartbeat, defined as under 60 beats per minute for an adult.
from The Century Dictionary and Cyclopedia
- n. Abnormally slow pulsation of the heart.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. abnormally slow heartbeat
brady- + Greek kardiā, heart; see cardia.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek βραδύς (bradus, "slow") and καρδία (kardia, "heart"). (Wiktionary)