Simple Definition of coronary

from our Learner's Dictionary

coronary

1 of 2

adjective

ˈkorəˌneri How to pronounce coronary (audio)
British ˈkɒrənri
: of or relating to the heart and especially to the vessels that supply blood to the heart
a coronary artery
coronary surgery
coronary heart disease
coronary thrombosis [=a dangerous condition in which an artery to the heart is blocked by a blood clot]

coronary

2 of 2

noun

plural coronaries
informal : heart attack
I almost had a coronary when I heard the news.

Cite this Entry

“Coronary.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/coronary. Accessed 15 Jun. 2026.

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