circulatory system
noun
: the system of blood, blood vessels, lymphatics, and heart concerned with the circulation of the blood and lymph
Examples of circulatory system in a Sentence
Recent Examples on the Web
Unlike your circulatory system, which is powered by the heart, the lymphatic system doesn’t have a central pump.
—
Avery Newmark, AJC.com, 20 Feb. 2026
Narrower blood vessels lose less heat to the cooler air, but this results in the body pushing more fluid out of the circulatory system and toward the kidneys, which then increases urine output.
—Cara Ocobock, The Conversation, 6 Feb. 2026
Don’t Overlook the Ductwork If the house is the body, the ductwork is the circulatory system.
—Brynn Cooksey, Forbes.com, 26 Jan. 2026
Potatoes help support the health of important body systems such as your GI tract, circulatory system, skin, and immune system.
—Barbie Cervoni, Verywell Health, 24 Nov. 2025
See All Example Sentences for circulatory system
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Avery Newmark, AJC.com, 20 Feb. 2026
Narrower blood vessels lose less heat to the cooler air, but this results in the body pushing more fluid out of the circulatory system and toward the kidneys, which then increases urine output.
—Cara Ocobock, The Conversation, 6 Feb. 2026
Don’t Overlook the Ductwork If the house is the body, the ductwork is the circulatory system.
—Brynn Cooksey, Forbes.com, 26 Jan. 2026
Potatoes help support the health of important body systems such as your GI tract, circulatory system, skin, and immune system.
—Barbie Cervoni, Verywell Health, 24 Nov. 2025
See All Example Sentences for circulatory system
Cite this Entry
“Circulatory system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/circulatory%20system. Accessed 1 Mar. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
