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 …—
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Harper'sExamples of bloodstream in a Sentence
The drug is now entering the bloodstream.
Recent Examples on the Web
Its high protein content helps slow down the absorption of sugar into your bloodstream, preventing sudden spikes.
—Lauren Manaker Ms, Health, 20 Feb. 2026
Paul Koch, chair of the Department of Plant Pathology at the University of Wisconsin-Madison, said smoking changes the chemical structure of pesticides and can introduce them into the bloodstream and organs like the brain.
—Gina Lee Castro, jsonline.com, 19 Feb. 2026
Too much carbon dioxide can also lead to a condition called hypercapnia, or too much CO2 in your bloodstream, which can become chronic and affect your lungs, brain, nerves and muscles, according to Cleveland Clinic.
—Alex Perry, Cincinnati Enquirer, 19 Feb. 2026
These particles can be inhaled and enter the lungs and bloodstream.
—Katey Psencik, Austin American Statesman, 19 Feb. 2026
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Lauren Manaker Ms, Health, 20 Feb. 2026
Paul Koch, chair of the Department of Plant Pathology at the University of Wisconsin-Madison, said smoking changes the chemical structure of pesticides and can introduce them into the bloodstream and organs like the brain.
—Gina Lee Castro, jsonline.com, 19 Feb. 2026
Too much carbon dioxide can also lead to a condition called hypercapnia, or too much CO2 in your bloodstream, which can become chronic and affect your lungs, brain, nerves and muscles, according to Cleveland Clinic.
—Alex Perry, Cincinnati Enquirer, 19 Feb. 2026
These particles can be inhaled and enter the lungs and bloodstream.
—Katey Psencik, Austin American Statesman, 19 Feb. 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 23 Feb. 2026.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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