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

Flatworms are a group of invertebrates without specialized respiratory, skeletal or circulatory systems. —Irene Wright, Miami Herald, 9 Apr. 2025

Treadmill for Building Cardiovascular Health Improving cardiovascular health, which is the health of your heart, lungs, and circulatory system, can improve overall health and decrease the risk of cardiovascular disease. —Cory Martin, Verywell Health, 19 Feb. 2025

Beta blockers are a class of medication intended to treat a range of disorders involving the heart and the circulatory system. —Aviel Kanter, Glamour, 10 Mar. 2025

Less than a pinpoint of ricin can kill a person within 36 to 48 hours due to the failure of the respiratory and circulatory systems. —Sophie Tanno, CNN Money, 17 Apr. 2025

Word History

First Known Use

1862, in the meaning defined above

Rhymes for circulatory system

• cryptosystem
• ecosystem
• intersystem
• multisystem
• photosystem
• subsystem

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