mRNA
noun
plural mRNAs
: messenger rna
Microarrays that identify thousands of active genes at a time are now a standard tool for biologists. They detect the mRNAs produced by active genes.—
New Scientist
New ScientistExamples of mRNA in a Sentence
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The shakeup comes after Kennedy was criticized for his mixed messaging on a measles outbreak, firing a vaccine advisory panel and cutting $500 million in funding for developing mRNA technology, which is used in the two most common COVID-19 vaccines.
—Zac Anderson, USA Today, 31 Aug. 2025
In recent months, Kennedy has fired the CDC's vaccine advisory committee, halted contracts for mRNA vaccine research, and pushed changes in vaccine policy that public health officials say jeopardize the nation's immunization infrastructure.
—Jordan King, MSNBC Newsweek, 28 Aug. 2025
That includes mass firings, gutting a key government vaccine panel, canceling studies on mRNA shot technology and hiring those with like-minded views.
—Annika Kim Constantino, CNBC, 28 Aug. 2025
One side effect of the mRNA COVID vaccines has been most common in boys and men from age 12 to 39 and involves cardiovascular issues that are caused by inflammation in the heart and the lining surrounding it.
—Meghan Bartels, Scientific American, 27 Aug. 2025
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Zac Anderson, USA Today, 31 Aug. 2025
In recent months, Kennedy has fired the CDC's vaccine advisory committee, halted contracts for mRNA vaccine research, and pushed changes in vaccine policy that public health officials say jeopardize the nation's immunization infrastructure.
—Jordan King, MSNBC Newsweek, 28 Aug. 2025
That includes mass firings, gutting a key government vaccine panel, canceling studies on mRNA shot technology and hiring those with like-minded views.
—Annika Kim Constantino, CNBC, 28 Aug. 2025
One side effect of the mRNA COVID vaccines has been most common in boys and men from age 12 to 39 and involves cardiovascular issues that are caused by inflammation in the heart and the lining surrounding it.
—Meghan Bartels, Scientific American, 27 Aug. 2025
See All Example Sentences for mRNA
Cite this Entry
“MRNA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mRNA. Accessed 30 Oct. 2025.
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