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
IgE blood test: This test checks for caffeine-specific IgE antibodies in your bloodstream, indicating an allergic response.
—Lindsay Curtis, Health, 10 July 2025
Fiber slows the absorption of sugar in your bloodstream, reducing glucose levels, which gives you steady energy.5 Despite widespread support, coconut may not be the best addition to a ketogenic or low glycemic diet.
—Amy Brownstein, Verywell Health, 9 July 2025
This can includes increasing the amount of sugar available in your bloodstream that can be used for energy via increasing the amount of glucose released by your liver as well as decreasing the amount of insulin and increasing the amount of glucagon released by your pancreas.
—Bruce Y. Lee, Forbes.com, 5 July 2025
The air quality monitors will measure for PM10 — inhalable particulate matter that is less than 10 nanometers in diameter, which can enter the lungs and bloodstream and cause serious health issues.
—Lily Carey, Chicago Tribune, 3 July 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.
Lindsay Curtis, Health, 10 July 2025
Fiber slows the absorption of sugar in your bloodstream, reducing glucose levels, which gives you steady energy.5 Despite widespread support, coconut may not be the best addition to a ketogenic or low glycemic diet.
—Amy Brownstein, Verywell Health, 9 July 2025
This can includes increasing the amount of sugar available in your bloodstream that can be used for energy via increasing the amount of glucose released by your liver as well as decreasing the amount of insulin and increasing the amount of glucagon released by your pancreas.
—Bruce Y. Lee, Forbes.com, 5 July 2025
The air quality monitors will measure for PM10 — inhalable particulate matter that is less than 10 nanometers in diameter, which can enter the lungs and bloodstream and cause serious health issues.
—Lily Carey, Chicago Tribune, 3 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 14 Jul. 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