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cardiovascular system

American

[kahr-dee-oh-vas-kyuhl-er sis-tuhm] / ˌkɑr di oʊˈvæs kyəl ər ˌsɪs təm /

noun

plural

cardiovascular systems

Anatomy. the system that includes the heart, blood, and blood vessels; circulatory system.

cardiovascular system Scientific

See circulatory system

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When sleep is repeatedly disrupted by frequent awakenings, shorter sleep duration, or pauses in breathing, the cardiovascular system loses critical recovery time.

From Science Daily • Mar. 1, 2026

The doctor added that overall, Trump's cardiovascular system "shows excellent health".

From BBC • Dec. 1, 2025

Ozempic may also act directly on the cardiovascular system.

From Salon • Jan. 24, 2025

“The heart and cardiovascular system are working harder because, to some extent, they’re supporting two lives instead of one.”

From Los Angeles Times • Jan. 11, 2025

Blood was pooling in my lower body because my cardiovascular system had forgotten what it was like to pump blood “uphill,” there being neither “up” nor “down” in space.

From "Flying to the Moon: An Astronaut's Story" by Michael Collins

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023