# ribosomal RNA

> English word · Noun

## Definitions
1. the structural backbone of ribosomes, which is composed of RNA (ribonucleic acid)

## Etymology
From ribosomal + RNA.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/ribosomal-rna