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.
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Worse still, stress increases intestinal permeability—also known as leaky gut—by weakening the gut lining and allowing toxins and harmful microbes to enter the bloodstream.
—Jordi Lippe-McGraw, Forbes.com, 1 Aug. 2025
This means less cholesterol is absorbed into the bloodstream.
—Maggie O'Neill, Verywell Health, 30 July 2025
Most of these epithelia are designed to keep foreign invaders, like viruses, bacteria, and even dirt, from entering the bloodstream.
—Monica Cull, Discover Magazine, 29 July 2025
The first is systemic therapy in which hormones are given in a way that is absorbed into the bloodstream.
—Katia Hetter, CNN Money, 24 July 2025
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Jordi Lippe-McGraw, Forbes.com, 1 Aug. 2025
This means less cholesterol is absorbed into the bloodstream.
—Maggie O'Neill, Verywell Health, 30 July 2025
Most of these epithelia are designed to keep foreign invaders, like viruses, bacteria, and even dirt, from entering the bloodstream.
—Monica Cull, Discover Magazine, 29 July 2025
The first is systemic therapy in which hormones are given in a way that is absorbed into the bloodstream.
—Katia Hetter, CNN Money, 24 July 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 6 Aug. 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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