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.
Native to southwest China, pandas spend up to 16 hours a day devouring bamboo, absorbing a genetic material called microRNA (miRNA) into their bloodstream, according to research published Friday in the journal Frontiers. Chris Lau, CNN, 28 Feb. 2025 If scuba divers don’t take precautions, the nitrogen bubbles in their bloodstream can cause decompression sickness. Mariette Williams, Essence, 25 Feb. 2025 Long spells of sitting in airports and on airplanes is a common story among patients who come to the ER with one or more clots in their legs — or worse, evidence that a clot has broken free and traveled through the bloodstream to lodge in the lungs, a serious condition called a pulmonary embolus. Arthur L. Kellermann, Forbes, 22 Feb. 2025 Symptoms usually begin as headache, nausea, vomiting and fever, but then can spread to neurological symptoms after the parasite leaves the bloodstream, enters muscle, migrates to peripheral nerves and into the spinal column and brain, doctors said. Irene Wright, Miami Herald, 21 Feb. 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 8 Mar. 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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