ribosome

noun
ri·​bo·​some | \ ˈrī-bə-ˌsōm How to pronounce ribosome (audio) \

Definition of ribosome

: any of the RNA-rich cytoplasmic granules that are sites of protein synthesis — see cell illustration

Other Words from ribosome

ribosomal \ ˌrī-​bə-​ˈsō-​məl How to pronounce ribosome (audio) \ adjective

Examples of ribosome in a Sentence

Recent Examples on the Web These may change consensus ribosome binding sequences, transcription regulatory sequences, and other structures potentially affecting gene expression and overall biological properties of the virus. William A. Haseltine, Forbes, 10 Dec. 2021 The lipid spheres carrying the mRNA enter the ribosome, a component of human cells whose main function is making proteins. Dallas News, 27 Aug. 2021 For example, the mitochondria is responsible for energy conversion, while the ribosome is the place of protein synthesis in the cell. Anna Powers, Forbes, 30 Aug. 2021 There, the lipid spheres give instructions to the ribosome on how to make the spike protein found on the virus that causes COVID-19. Dallas News, 27 Aug. 2021 Naked mole rats, for example, have an unusually accurate ribosome, the cellular structure responsible for assembling proteins. Bob Holmes, Smithsonian Magazine, 18 May 2021 Once the protein is made, the RNA, ribosome, and protein all detach, and the RNA is subsequently broken down and removed from the cell with other metabolic debris. Stacy Ryburn, Arkansas Online, 29 Apr. 2021 The mRNA in the vaccines enters the cell's cytoplasm, attaches to a ribosome, and is translated into the spike protein. Stacy Ryburn, Arkansas Online, 29 Apr. 2021 But the approach doesn’t work well when proteins are exceptionally large, work in complexes such as the ribosome, or can’t be crystallized, as is the case with many proteins that sit in cell membranes. Robert F. Service, Science | AAAS, 21 Oct. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ribosome.' 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 ribosome

1958, in the meaning defined above

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Time Traveler for ribosome

Time Traveler

The first known use of ribosome was in 1958

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Dictionary Entries Near ribosome

ribosomal RNA

ribosome

ribosyl

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Statistics for ribosome

Last Updated

4 Jan 2022

Cite this Entry

“Ribosome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ribosome. Accessed 27 Jan. 2022.

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More Definitions for ribosome

ribosome

noun
ri·​bo·​some | \ ˈrī-bə-ˌsōm How to pronounce ribosome (audio) \

Kids Definition of ribosome

: one of the tiny round particles in a cell where proteins are made

ribosome

noun
ri·​bo·​some | \ ˈrī-bə-ˌsōm How to pronounce ribosome (audio) \

Medical Definition of ribosome

: any of the RNA- and protein-rich cytoplasmic granules that are sites of protein synthesis

Other Words from ribosome

ribosomal \ ˌrī-​bə-​ˈsō-​məl How to pronounce ribosome (audio) \ adjective

More from Merriam-Webster on ribosome

Britannica.com: Encyclopedia article about ribosome

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