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
Because of their small size, these particles can penetrate deep into the respiratory tract, reaching the lungs and even entering the bloodstream, leading to health risks such as respiratory issues and cancer.
—Faisal Kutty, Newsweek, 11 Mar. 2025
These are ‘tagged’ amino acids that are swallowed, enter the bloodstream and are incorporated into new muscle proteins when the body repairs and rebuilds muscle after exercise.
—New Atlas, 8 Mar. 2025
Natural sugar is better because the sugar found naturally in foods and drinks is paired with other nutrients, helping slow its absorption into the bloodstream.
—Jillian Kubala, Health, 3 Mar. 2025
During the trial, prosecutors argued that Letby injected air into some of the babies’ stomachs or bloodstreams, which caused embolisms.
—Kc Baker, People.com, 4 Feb. 2025
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Faisal Kutty, Newsweek, 11 Mar. 2025
These are ‘tagged’ amino acids that are swallowed, enter the bloodstream and are incorporated into new muscle proteins when the body repairs and rebuilds muscle after exercise.
—New Atlas, 8 Mar. 2025
Natural sugar is better because the sugar found naturally in foods and drinks is paired with other nutrients, helping slow its absorption into the bloodstream.
—Jillian Kubala, Health, 3 Mar. 2025
During the trial, prosecutors argued that Letby injected air into some of the babies’ stomachs or bloodstreams, which caused embolisms.
—Kc Baker, People.com, 4 Feb. 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 Mar. 2025.
Copy CitationKids Definition
bloodstream
noun
blood·stream
-ˌstrēm
: the flowing blood in a living thing with a circulatory system
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