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

Examples of mRNA in a Sentence

Recent Examples on the Web Personalized mRNA Vaccines Another new technology being used in the development of novel cancer vaccines is messenger RNA (mRNA). Jaimie Seaton, Scientific American, 13 Feb. 2024 The study’s results suggest that mRNA in extracellular vesicles are likely an ideal biological marker for identifying brain disorders that involve mood, schizophrenia, epilepsy and substance abuse. Angela Roberts, Baltimore Sun, 9 Feb. 2024 Both the Pfizer-BioNTech and Moderna COVID-19 mRNA vaccines use this technique. Discover Magazine, 8 Jan. 2024 In 2005, the team published a breakthrough paper solving one of the major problems with using mRNA. Naomi Kresge, Fortune, 2 Oct. 2023 For decades, scientists from around the world pursued the use of mRNA (messenger RNA) as medicine. Yasemin Saplakoglu, Quanta Magazine, 2 Oct. 2023 The way mRNA vaccines are made does result in small amounts of DNA in the final product, Offit says—but that’s true of any vaccine grown in cells, including the measles and chickenpox vaccines. Tanya Lewis, Scientific American, 4 Jan. 2024 Pipeline & Deal Updates Self-amplifying mRNA: The Japanese Ministry of Health has approved ARCT-154, a Covid-19 vaccine jointly developed by CSL and Arcturus Therapeutics. Katie Jennings, Forbes, 29 Nov. 2023 The researchers discovered that cells protect their own mRNA with a specific chemical modification. Benjamin Mueller, New York Times, 2 Oct. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mRNA.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of mRNA was in 1961

Dictionary Entries Near mRNA

Cite this Entry

“MRNA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mRNA. Accessed 13 Apr. 2024.

Medical Definition

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!