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
Lower barometric pressure also means less force in the lungs to push oxygen from there into your bloodstream.
—
Bruce Y. Lee,
Forbes.com,
5 July 2026
As large amounts of sodium, fat, and calories enter the bloodstream, gastric emptying may take significantly longer than a typical meal.
—
Jennifer Borresen,
USA Today,
3 July 2026
Those particles may have been grinding in the joint, causing mechanical wear on the cobalt-chromium femoral head that released cobalt into the surrounding tissue and bloodstream.
—
Beth Mole,
ArsTechnica,
2 July 2026
For bloodstream infections, patients can experience dangerously low blood pressure and blistering skin lesions.
—
Vanessa Etienne,
PEOPLE,
2 July 2026
See All Example Sentences for bloodstream
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Bruce Y. Lee,
Forbes.com,
5 July 2026
As large amounts of sodium, fat, and calories enter the bloodstream, gastric emptying may take significantly longer than a typical meal.
—
Jennifer Borresen,
USA Today,
3 July 2026
Those particles may have been grinding in the joint, causing mechanical wear on the cobalt-chromium femoral head that released cobalt into the surrounding tissue and bloodstream.
—
Beth Mole,
ArsTechnica,
2 July 2026
For bloodstream infections, patients can experience dangerously low blood pressure and blistering skin lesions.
—
Vanessa Etienne,
PEOPLE,
2 July 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 7 Jul. 2026.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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