stands for ribosomal RNA; see ribosome + RNA.
1958, coined by U.S. microbiologist Richard B. Roberts (1910-1980) from ribo(nucleic acid) + -some "body" (see somato-). Related: Ribosomal.
1948, abbreviation of ribonucleic acid (see ribonucleic).
updated on October 09, 2021
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