bloodstream

noun
blood·stream | \ˈbləd-ˌstrēm \

Definition of bloodstream 

1 : the flowing blood in a circulatory system

2 : a mainstream of power or vitality introduce into the economic bloodstream a large amount of moneyHarper's

Examples of bloodstream in a Sentence

The drug is now entering the bloodstream.

Recent Examples on the Web

No amount of marijuana in the bloodstream is acceptable if a driver is stopped for impaired driving. Kathleen Gray, Detroit Free Press, "How Michigan's marijuana proposal differs from Colorado law," 12 July 2018 The key component, of course, is one that can respond to caffeine in the bloodstream. Beth Mole, Ars Technica, "Scientists use caffeine to control genes—and treat diabetic mice with coffee," 20 June 2018 Higher concentrations of vitamin D circulating in the bloodstream are linked to a lower risk of colorectal cancer, according to a large international study published Thursday. Laurie Mcginley, BostonGlobe.com, "Higher vitamin D levels linked to lower colorectal cancer risk, study finds," 15 June 2018 Higher concentrations of vitamin D circulating in the bloodstream are linked to a lower risk of colorectal cancer, according to a large international study published Thursday. Laurie Mcginley, ajc, "Higher vitamin D levels linked to lower colorectal cancer risk, study finds," 14 June 2018 Once in the bloodstream, infection can head anywhere, including the heart. Judy Schaechter, M.d., miamiherald, "Body art to be even more popular in future as kids emulate their tattooed parents," 29 May 2018 But if the receptors in the pituitary sense that there’s too much testosterone in the bloodstream, that forms a negative feedback loop. Sarah Jacoby, SELF, "Hold On Everyone, Male Birth Control Still Isn't Happening Anytime Soon," 22 Mar. 2018 But muscles also will readily turn to and slurp up any bonus proteins floating around in the bloodstream. Gretchen Reynolds, New York Times, "Lift Weights, Eat More Protein, Especially if You’re Over 40," 7 Feb. 2018 Much of aspirin's cardiovascular benefit, for example, stems from its ability—at a dose as low as 81 milligrams—to prevent clots from forming in the bloodstream. Viviane Callier, Scientific American, "Aspirin May Prevent Cancer from Spreading, New Research Shows," 1 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bloodstream.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bloodstream

13th century, in the meaning defined at sense 1

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Last Updated

22 Oct 2018

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Time Traveler for bloodstream

The first known use of bloodstream was in the 13th century

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More Definitions for bloodstream

bloodstream

noun

English Language Learners Definition of bloodstream

: the flow of blood that moves through the heart and body

bloodstream

noun
blood·stream | \ˈbləd-ˌstrēm \

Kids Definition of bloodstream

: the circulating blood in the body

bloodstream

noun
blood·stream | \-ˌstrēm \

Medical Definition of bloodstream 

: the flowing blood in a circulatory system

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