ribosomal RNA

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noun Biochemistry.

a type of RNA, distinguished by its length and abundance, functioning in protein synthesis as a component of ribosomes. Abbreviation: rRNA

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Origin of ribosomal RNA

First recorded in 1960–65; ribosome + -al¹

Words nearby ribosomal RNA

ribonucleoside, ribonucleotide, ribose, ribose 5-phosphate isomerase, riboso, ribosomal RNA, ribosome, ribosuria, ribosyl, ribozo, ribozyme

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use ribosomal RNA in a sentence

So mutations — copying changes — rarely happen in ribosomal RNA.
What biologists call a species is becoming more than just a name|Jack J. Lee|October 14, 2021|Science News For Students
With enough changing of the influenza RNA over time, the vaccine no longer provokes the “right” immune response.
When You Get the Flu This Winter, You Can Blame Anti-Vaxxers|Kent Sepkowitz|January 1, 2015|DAILY BEAST
So too with a vaccine that provokes a specific immune response aimed at a specific RNA sequence.
When You Get the Flu This Winter, You Can Blame Anti-Vaxxers|Kent Sepkowitz|January 1, 2015|DAILY BEAST
These drugs interfere with the double helix zip-unzip-zip-again process of RNA and DNA replication.
Emory Will Wage High-Tech War on Ebola|Kent Sepkowitz|August 1, 2014|DAILY BEAST

Here, the blockage of RNA prevents extra amyloid from being produced by targeting its precursor protein and making less of it.
Trial Drug Reverses Alzheimer’s Disease in Mice|Elizabeth Lopatto|May 24, 2014|DAILY BEAST
Its molecules bind to messenger RNA, allowing certain genes to be “turned off.”
Trial Drug Reverses Alzheimer’s Disease in Mice|Elizabeth Lopatto|May 24, 2014|DAILY BEAST
Where protein synthesis is intense, the content in RNA is high.
Smithsonian Institution - United States National Museum - Bulletin 240|Anonymous
Thus, the spinning glands of silkworms are extraordinarily rich in RNA.
Smithsonian Institution - United States National Museum - Bulletin 240|Anonymous

British Dictionary definitions for ribosomal RNA

ribosomal RNA

noun

biochem a type of RNA thought to be transcribed from DNA in the nucleoli of cell nuclei, subsequently forming the component of ribosomes on which the translation of messenger RNA into protein chains is accomplishedSometimes shortened to: rRNA

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for ribosomal RNA

ribosomal RNA

rRNA

Scientific definitions for ribosomal RNA

ribosomal RNA

[ rī′bə-sō′məl ]

The RNA that is a structural component of a ribosome. Comparison of gene sequences of the ribosomal RNA of different organisms has been used to determine evolutionary relationships among the organisms. See more at RNA.