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.
Recent Examples on the Web
Although she once was hooked up 24 hours a day to the feeding system that delivered nutrients directly into the bloodstream, doctors began weaning her off as her intestines got stronger.
—Andrea Castillo, Los Angeles Times, 27 May 2025
As explained by the U.S. Center for Disease Control and Prevention (CDC), a lack of insulin means that blood sugar can't be used as energy and instead builds up in the bloodstream.
—Alyce Collins, MSNBC Newsweek, 25 May 2025
That includes testing kids’ blood lead levels, treating lead poisoning with chelation therapy (which removes heavy metals from the bloodstream) and eliminating exposures in the home by replacing windows and doors.
—Aria Bendix, NBC news, 22 May 2025
In rare circumstances, infection can enter the bloodstream and lead to arterial infections, endocarditis and arthritis.
—Howard Cohen, Miami Herald, 20 May 2025
See All Example Sentences for bloodstream
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Andrea Castillo, Los Angeles Times, 27 May 2025
As explained by the U.S. Center for Disease Control and Prevention (CDC), a lack of insulin means that blood sugar can't be used as energy and instead builds up in the bloodstream.
—Alyce Collins, MSNBC Newsweek, 25 May 2025
That includes testing kids’ blood lead levels, treating lead poisoning with chelation therapy (which removes heavy metals from the bloodstream) and eliminating exposures in the home by replacing windows and doors.
—Aria Bendix, NBC news, 22 May 2025
In rare circumstances, infection can enter the bloodstream and lead to arterial infections, endocarditis and arthritis.
—Howard Cohen, Miami Herald, 20 May 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 10 Jun. 2025.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
Love words? Need even more definitions?
Merriam-Webster unabridged
Share