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unstable angina
noun
: angina pectoris characterized by sudden changes (such as an increase in the severity or length of anginal attacks or a decrease in the exertion required to precipitate an attack) especially when symptoms were previously stable
Examples of unstable angina in a Sentence
Recent Examples on the Web
Both stable and unstable angina occur when the arteries (blood vessels) become narrow or blocked during CAD.
—Alexandria Nyembwe, Phd, Rn, Health, 22 Oct. 2024
Individuals with certain heart conditions, such as unstable angina or recent heart attack, should avoid using these medications.
—Amber Smith, Discover Magazine, 13 Oct. 2023
The cardiovascular risks that appear to be linked to Ground Zero exposure include heart attack, stroke, unstable angina, coronary artery surgery and angioplasty.
—NBC News, 6 Sep. 2019
That includes people who've recently had a heart attack or have unstable angina (chest pain that arises even at rest), and older people prone to low blood pressure.
—Amy Norton, chicagotribune.com, 9 May 2018
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Word History
First Known Use
1972, in the meaning defined above
Dictionary Entries Near unstable angina
Cite this Entry
“Unstable angina.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unstable%20angina. Accessed 8 Nov. 2024.
Medical Definition
unstable angina
noun
: angina pectoris characterized by sudden changes (as an increase in the severity or length of anginal attacks or a decrease in the exertion required to precipitate an attack) especially when symptoms were previously stable
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