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
Peanut butter is high in heart-healthy fats and protein, which are known to slow digestion and promote a gradual release of glucose into the bloodstream.
—Caitlin Pagán, Verywell Health, 13 Aug. 2025
The tiniest form can enter the deepest parts of the lungs, passing into the bloodstream.
—Lisa Wood Shapiro, Wired News, 9 Aug. 2025
Saliva activates the pouch ingredients, which then release caffeine into the bloodstream, says Mill Etienne, MPH, MD, an associate professor of neurology and medicine at the New York Medical College in Valhalla.
—Emily Kay Votruba, EverydayHealth.com, 6 Aug. 2025
They were run through with neoprene tubing, and there were these insects that looked like cockroaches which were like message-units that were kind of like my bloodstream.
—Rolling Stone, 1 Aug. 2025
See All Example Sentences for bloodstream
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Caitlin Pagán, Verywell Health, 13 Aug. 2025
The tiniest form can enter the deepest parts of the lungs, passing into the bloodstream.
—Lisa Wood Shapiro, Wired News, 9 Aug. 2025
Saliva activates the pouch ingredients, which then release caffeine into the bloodstream, says Mill Etienne, MPH, MD, an associate professor of neurology and medicine at the New York Medical College in Valhalla.
—Emily Kay Votruba, EverydayHealth.com, 6 Aug. 2025
They were run through with neoprene tubing, and there were these insects that looked like cockroaches which were like message-units that were kind of like my bloodstream.
—Rolling Stone, 1 Aug. 2025
See All Example Sentences for bloodstream
Cite this Entry
“Bloodstream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bloodstream. Accessed 22 Aug. 2025.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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