bloodstream
noun
blood·stream
ˈbləd-ˌstrēm 
1
: the flowing blood in a circulatory system
2
: a mainstream of power or vitality
… introduce into the economic bloodstream a large amount of money …—
Harper's
Harper'sExamples of bloodstream in a Sentence
The drug is now entering the bloodstream.
Recent Examples on the Web
Possible infections could include bloodstream infections, bone and joint infections, heart valve infections and life-threatening conditions such as sepsis or septic shock.
—Angelique Brenes, PEOPLE, 15 May 2026
Countries built strategic reserves, protected shipping routes, made alliances with fossil fuel producers and treated fossil energy as the bloodstream of national power.
—Ingmar Rentzhog, Forbes.com, 15 May 2026
This gel, formed by soluble fiber, slows digestion and the release of carbohydrates into the bloodstream.
—Caitlin Beale, Health, 15 May 2026
Experts suspect that the toxins of lilies are quickly absorbed into the cat’s bloodstream and damage the epithelial cells of the renal tubules, which are the long, narrow tubes of nephrons, the structural and functional units of kidneys.
—Encyclopedia Britannica, 15 May 2026
See All Example Sentences for bloodstream
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.
Angelique Brenes, PEOPLE, 15 May 2026
Countries built strategic reserves, protected shipping routes, made alliances with fossil fuel producers and treated fossil energy as the bloodstream of national power.
—Ingmar Rentzhog, Forbes.com, 15 May 2026
This gel, formed by soluble fiber, slows digestion and the release of carbohydrates into the bloodstream.
—Caitlin Beale, Health, 15 May 2026
Experts suspect that the toxins of lilies are quickly absorbed into the cat’s bloodstream and damage the epithelial cells of the renal tubules, which are the long, narrow tubes of nephrons, the structural and functional units of kidneys.
—Encyclopedia Britannica, 15 May 2026
See All Example Sentences for bloodstream
Cite this Entry
“Bloodstream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bloodstream. Accessed 20 May. 2026.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
Love words? Need even more definitions?
Merriam-Webster unabridged
