[kawr-uh-ner-ee, kor-]
of or pertaining to the human heart, with respect to health.
pertaining to the arteries that supply the heart tissues and originate in the root of the aorta.
encircling like a crown, as certain blood vessels.
of or like a crown.
noun, plural coronaries.
Pathology. a heart attack, especially a coronary thrombosis.

1600–10; < Latin corōnārius, equivalent to corōn(a) crown + -ārius -ary; in reference to the heart, extended from coronary artery, coronary vein, etc.

postcoronary, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
coronary (ˈkɒrənərɪ)
1.  anatomy designating blood vessels, nerves, ligaments, etc, that encircle a part or structure
n , -naries
2.  short for coronary thrombosis
[C17: from Latin corōnārius belonging to a wreath or crown; see corona]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

c.1600 (adj.) "suitable for garlands," from L. coronarius "of a crown," from corona "crown" (see crown). Anatomical use is 1670s for structure of blood vessels that surround the heart like a crown. Short for coronary thrombosis it dates from 1955. Coronary artery is recorded from 1741.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

coronary cor·o·nar·y (kôr'ə-něr'ē)

  1. Of, relating to, or being the coronary arteries or coronary veins.

  2. Of or relating to the heart.

A coronary thrombosis.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
coronary   (kôr'ə-něr'ē)  Pronunciation Key 
Relating to or involving the heart.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
coronary [(kor-uh-ner-ee, kawr-uh-ner-ee)]

A descriptive term for the heart or the arteries that supply blood to the heart muscle.

Note: The word coronary is often used by itself in an informal sense to refer to a heart attack or coronary thrombosis.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Narrowed arteries indicate the presence of coronary artery disease.
Lasers that did not work inside coronary arteries, found great success
  improving the eye sight of many.
He used the femoral-to-aorta-to-coronary conduit to slip a tiny balloon into a
  patient's partially blocked coronary artery.
High intake of soy protein has been linked to lower rates of coronary heart
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