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
This shift allows harmful bacteria to grow and weakens your gut barrier, allowing toxins like lipopolysaccharides (LPS) to enter the bloodstream.
—Lindsey Desoto, Health, 15 Nov. 2025
Earlier efforts to use IL-4 relied on injections into the bloodstream.
—Aamir Khollam, Interesting Engineering, 14 Nov. 2025
Those toxins can enter the bloodstream and affect the nervous system, leading to symptoms of the illness.
—Evan Moore
november 13, Charlotte Observer, 13 Nov. 2025
My lightning patch was made by Barrière, whose co-founder Cleo Davis-Urman told me that the company uses a process called micronization to break down large molecules into particles small enough to enter the bloodstream.
—Yasmin Tayag, The Atlantic, 11 Nov. 2025
See All Example Sentences for bloodstream
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Lindsey Desoto, Health, 15 Nov. 2025
Earlier efforts to use IL-4 relied on injections into the bloodstream.
—Aamir Khollam, Interesting Engineering, 14 Nov. 2025
Those toxins can enter the bloodstream and affect the nervous system, leading to symptoms of the illness.
—Evan Moore
november 13, Charlotte Observer, 13 Nov. 2025
My lightning patch was made by Barrière, whose co-founder Cleo Davis-Urman told me that the company uses a process called micronization to break down large molecules into particles small enough to enter the bloodstream.
—Yasmin Tayag, The Atlantic, 11 Nov. 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 19 Nov. 2025.
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bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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