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
Others required a slightly larger leap of faith, including GAH intravenous ozone therapy—an essential nutrients serum delivered directly into the bloodstream—cryotherapy, and time in the hyperbaric chamber.
—Rachel Ingram, Robb Report, 7 June 2026
One of the most frightening setbacks came when Asher developed an MRSA bloodstream infection that originated in his port — the device connected to his heart that allows doctors to administer treatment.
—Jordan Greene, PEOPLE, 5 June 2026
Existing antibody treatments are strain-specific and don’t target the virus responsible for the current outbreak, leaving few therapies capable of clearing virus from the bloodstream.
—Elie Dolgin, IEEE Spectrum, 4 June 2026
Wildfires release dangerous particulate matter into the air, which can enter your lungs and bloodstream.
—Bestreviews, Chicago Tribune, 4 June 2026
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Rachel Ingram, Robb Report, 7 June 2026
One of the most frightening setbacks came when Asher developed an MRSA bloodstream infection that originated in his port — the device connected to his heart that allows doctors to administer treatment.
—Jordan Greene, PEOPLE, 5 June 2026
Existing antibody treatments are strain-specific and don’t target the virus responsible for the current outbreak, leaving few therapies capable of clearing virus from the bloodstream.
—Elie Dolgin, IEEE Spectrum, 4 June 2026
Wildfires release dangerous particulate matter into the air, which can enter your lungs and bloodstream.
—Bestreviews, Chicago Tribune, 4 June 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 9 Jun. 2026.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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