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
The fiber in fruit slows digestion and reduces the absorption of sugar into the bloodstream, helping to lower post-meal blood sugar levels.
—Jillian Kubala, Health, 26 Feb. 2026
But ongoing inflammation–for example, the inflammation behind skin barrier disorders like eczema and psoriasis—can keep too many cytokines circulating in the bloodstream.
—Sonya Collins, SELF, 26 Feb. 2026
These minitablets pass through the stomach unscathed, minimizing digestive side-effects, then release the baking soda in the intestine where it can be absorbed into the bloodstream.
—Alex Hutchinson, Outside, 25 Feb. 2026
What 'Naked Carbs' Do to Blood Sugar Levels Refined grains are absorbed into the bloodstream more quickly than whole grains, said Joan Salge Blake, RDN, LDN, a dietitian and nutrition professor at Boston University.
—Mira Miller, Verywell Health, 25 Feb. 2026
See All Example Sentences for bloodstream
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Jillian Kubala, Health, 26 Feb. 2026
But ongoing inflammation–for example, the inflammation behind skin barrier disorders like eczema and psoriasis—can keep too many cytokines circulating in the bloodstream.
—Sonya Collins, SELF, 26 Feb. 2026
These minitablets pass through the stomach unscathed, minimizing digestive side-effects, then release the baking soda in the intestine where it can be absorbed into the bloodstream.
—Alex Hutchinson, Outside, 25 Feb. 2026
What 'Naked Carbs' Do to Blood Sugar Levels Refined grains are absorbed into the bloodstream more quickly than whole grains, said Joan Salge Blake, RDN, LDN, a dietitian and nutrition professor at Boston University.
—Mira Miller, Verywell Health, 25 Feb. 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 1 Mar. 2026.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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