unstable angina

noun
Updated on: 15 May 2018

Definition of unstable angina

: 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

Recent Examples of unstable angina from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unstable angina.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of unstable angina

1972

in the meaning defined above

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Medical Dictionary

unstable angina

noun

medical Definition of unstable angina

: 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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