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
Most infections were found in the bloodstream, but there has also been an increase in cases involving cerebrospinal fluid (the liquid surrounding the brain and spinal cord), as well as soft tissue and bone infections.
—Jenny Lehmann, Discover Magazine, 3 Apr. 2025
The difference, however, is how long an active ingredient can stay in the bloodstream.
—Steve Banker, Forbes.com, 31 Mar. 2025
Research shows that caffeine increases the concentration of blood-thinning medication in the bloodstream, enhancing its effects.
—Sohaib Imtiaz, Verywell Health, 31 Mar. 2025
Testing by the Centers for Disease Control and Prevention indicates that 99 percent of people in the U.S., including newborn babies, have PFAS in their bloodstream.
—Andrea Thompson, Scientific American, 28 Mar. 2025
See All Example Sentences for bloodstream
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Jenny Lehmann, Discover Magazine, 3 Apr. 2025
The difference, however, is how long an active ingredient can stay in the bloodstream.
—Steve Banker, Forbes.com, 31 Mar. 2025
Research shows that caffeine increases the concentration of blood-thinning medication in the bloodstream, enhancing its effects.
—Sohaib Imtiaz, Verywell Health, 31 Mar. 2025
Testing by the Centers for Disease Control and Prevention indicates that 99 percent of people in the U.S., including newborn babies, have PFAS in their bloodstream.
—Andrea Thompson, Scientific American, 28 Mar. 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 Apr. 2025.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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