bloodstream
UK: ˈblʌd.striːm | US: ˈblʌd.striːm
n. the flowing blood circulating through the heart, arteries, capillaries, and veins in a living organism.
The word "bloodstream" is a compound formed from "blood" (Old English blōd, meaning the vital fluid in animals) and "stream" (Old English strēam, meaning a flowing body of water). The term emerged in the 19th century, combining these two concepts to vividly describe the continuous movement of blood through the circulatory system, likening it to a river or current. This metaphor emphasizes the dynamic, life-sustaining nature of blood circulation.
Oxygen is carried throughout the body via the bloodstream.
The doctor analyzed the patient's bloodstream for infections.
Certain medications are injected directly into the bloodstream.
The bloodstream delivers nutrients to every cell in the body.
A healthy diet improves circulation in the bloodstream.