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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
Examples of bloodstream in a Sentence
The drug is now entering the bloodstream.
Recent Examples on the Web
When left untreated, this condition can lead to rare but potentially life-threatening complications, like cellulitis (a skin infection that can get into your bloodstream) and cavernous sinus thrombosis (a clot that restricts blood flow to your brain), Dr. Shokeen explains.
—Jenna Ryu, SELF, 1 Nov. 2024
So there’s the ability to detect early signs of tumors within the bloodstream of a patient.
—quantamagazine.org, 15 Oct. 2024
Key Takeaways Flesh-eating Vibrio bacteria in floodwaters can invade the bloodstream and cause fatal infections.
—Lisa Rapaport, EverydayHealth.com, 11 Oct. 2024
Hummingbirds cope with the onslaught by having leaky guts so that sugars can enter the bloodstream between gut cells instead of only through them.
—Bob Holmes, Smithsonian Magazine, 9 Oct. 2024
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Word History
First Known Use
13th century, in the meaning defined at sense 1
Time Traveler
The first known use of bloodstream was
in the 13th century
Dictionary Entries Near bloodstream
Cite this Entry
“Bloodstream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bloodstream. Accessed 21 Nov. 2024.
Kids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
More from Merriam-Webster on bloodstream
Nglish: Translation of bloodstream for Spanish Speakers
Britannica English: Translation of bloodstream for Arabic Speakers
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