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 Diabetes, for instance, can impact your circulatory system by causing fatty deposits to form inside blood vessels, limiting blood flow. Daryl Austin, USA TODAY, 24 Apr. 2024 Benefits of staying hydrated Staying hydrated is important for keeping bodily functions running smoothly, such as the urinary and digestive tracts and the circulatory system, which pumps blood to the heart. Taylor Nicioli, CNN, 18 Feb. 2024 Holmes explained that certain elements—skin, sweat glands, the circulatory system, and the hypothalamus—play key roles in thermoregulation. Korin Miller, Health, 19 Jan. 2024 During normal chicken development, the primordial germ cells migrate through the circulatory system and reside in the developing gonad. John Timmer, Ars Technica, 31 Jan. 2023 Taken together, journals form the circulatory system without which science could not function. Shella Keilholz, STAT, 1 Feb. 2024 Roaches breathe through the small holes in their body segments and have an open circulatory system. Laura Baisas, Popular Science, 24 Jan. 2024 The skin, sweat glands, circulatory system, and hypothalamus all play key roles in the process of thermoregulation. Korin Miller, Health, 19 Jan. 2024 Halberg and his team eventually honed in a group of secondary cells between the beetle's kidneys and circulatory system called leptophragmata. Jennifer Ouellette, Ars Technica, 27 Dec. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'circulatory system.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1862, in the meaning defined above

Time Traveler
The first known use of circulatory system was in 1862

Dictionary Entries Near circulatory system

Cite this Entry

“Circulatory system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/circulatory%20system. Accessed 22 May. 2024.

Kids Definition

circulatory system

noun
: the bodily system of blood, vessels, and heart concerned with the circulation of the blood and lymph

Medical Definition

circulatory system

noun
: the system of blood, blood vessels, lymphatics, and heart concerned with the circulation of the blood and lymph

More from Merriam-Webster on circulatory system

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!