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

Overhydration can cause a condition known as hyponatremia, which happens when the sodium levels in your bloodstream become unusually low, leading to your cells becoming waterlogged. Amy Marturana, SELF, "Here’s Exactly How Much Water You Should Drink Every Day," 2 Jan. 2019 And these drugs were discovered because researchers noticed that some African Americans had mutations on their PCSK9 genes that led them to have very low LDL cholesterol in their bloodstream. Brian Resnick, Vox, "Genetics has learned a ton — mostly about white people. That’s a problem.," 27 Oct. 2018 Too much sugar in your bloodstream can't be used by the body. Danielle Elmers, Town & Country, "Is Social Media Changing The Way We Think About Aging?," 21 July 2016 Two years ago, Purdy suffered from rhabdomyolysis (also known as rhabdo), a condition in which muscle tissue breaks down and releases a harmful protein into the bloodstream. Jenny Mccoy, SELF, "How Paralympic Medalist Amy Purdy Trains to Be a World-Class Snowboarder," 12 Dec. 2018 Company scientists said this could be because any that was being made was rapidly used by cells rather than getting into the bloodstream — an explanation some outside experts agreed with. Fox News, "Early results boost hopes for historic gene editing attempt," 7 Sep. 2018 The three suits all include the same image from Juul’s patent: a chart that shows certain nicotine salts deliver even more nicotine into the bloodstream than a Pall Mall cigarette. Rachel Becker, The Verge, "Juul users sue over the addictive e-cigarette," 23 July 2018 In rare circumstances, infection with salmonella can result in the organism getting into the bloodstream and producing more severe illnesses, according to the FDA. Peter Martinez, CBS News, "Kellogg's voluntarily recalls Honey Smacks cereal over possible salmonella contamination," 15 June 2018 Others such as saccharin and sucralose are not broken down at all but instead are absorbed directly into the bloodstream and excreted in the urine. Eunice Zhang, Washington Post, "Diet drinks may seem like a good idea, but their effects may surprise you," 3 June 2018

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

15 Jan 2019

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

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More Definitions for bloodstream



English Language Learners Definition of bloodstream

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


blood·​stream | \ ˈbləd-ˌstrēm \

Kids Definition of bloodstream

: the circulating blood in the body


blood·​stream | \ -ˌstrēm \

Medical Definition of bloodstream

: the flowing blood in a circulatory system

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More from Merriam-Webster on bloodstream

Rhyming Dictionary: Words that rhyme with bloodstream

Spanish Central: Translation of bloodstream

Nglish: Translation of bloodstream for Spanish Speakers

Britannica English: Translation of bloodstream for Arabic Speakers

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