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
These tiny particles can penetrate deep into the lungs and even enter the bloodstream, increasing the risk of heart attacks and lung diseases.
—Thomas G. Moukawsher, MSNBC Newsweek, 16 Apr. 2025
Hormone therapy taken by mouth is processed by the liver before entering the bloodstream.
—Matthew Nudy, The Conversation, 4 Apr. 2025
Metastatic prostate cancer is when cancer spreads via the bloodstream or lymph nodes to other parts of the body, like the bones, liver, lungs, or brain.
—Matthew Wosnitzer, Verywell Health, 28 Apr. 2025
Some glucose is stored in the liver, but most is released into the bloodstream.
—Merve Ceylan, Health, 25 Apr. 2025
See All Example Sentences for bloodstream
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Thomas G. Moukawsher, MSNBC Newsweek, 16 Apr. 2025
Hormone therapy taken by mouth is processed by the liver before entering the bloodstream.
—Matthew Nudy, The Conversation, 4 Apr. 2025
Metastatic prostate cancer is when cancer spreads via the bloodstream or lymph nodes to other parts of the body, like the bones, liver, lungs, or brain.
—Matthew Wosnitzer, Verywell Health, 28 Apr. 2025
Some glucose is stored in the liver, but most is released into the bloodstream.
—Merve Ceylan, Health, 25 Apr. 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 18 May. 2025.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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