bloodstream

noun

blood·​stream ˈbləd-ˌstrēm How to pronounce bloodstream (audio)
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
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.
Gadolinium is tightly bound to other chemicals in the contrast agent to help prevent the metal from leaching into the bloodstream, Wagner said. Stephanie Brown, Verywell Health, 14 Apr. 2025 In contrast, estrogen patches deliver the medication into the bloodstream, bypassing the liver, and do not increase this risk. Matthew Nudy, The Conversation, 4 Apr. 2025 He was released from the hospital on Wednesday after being monitored for three days to ensure no bile was leaking into the bloodstream. Michael Russo, New York Times, 28 Mar. 2025 Substances such as silica and gypsum could cause life-threatening lung damage and be absorbed into the bloodstream. Daniel Wine, CNN Money, 26 Mar. 2025 See All Example Sentences for bloodstream

Word History

First Known Use

13th century, in the meaning defined at sense 1

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

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Cite this Entry

“Bloodstream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bloodstream. Accessed 22 Apr. 2025.

Kids Definition

bloodstream

noun
blood·​stream -ˌstrēm How to pronounce bloodstream (audio)
: the flowing blood in a living thing with a circulatory system

Medical Definition

bloodstream

noun
blood·​stream -ˌstrēm How to pronounce bloodstream (audio)
: the flowing blood in a circulatory system

More from Merriam-Webster on bloodstream

Last Updated: - Updated example sentences
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