##  [Ribosome](/ribosome) 

  ##  [Ribosome](https://natural.quantumdictionary.io/ribosome-0) 

  

 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)



**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A ribonucleoprotein complex composed of rRNA and proteins that catalyzes the translation of messenger RNA into polypeptide chains; typically assembled from a large and a small subunit whose sizes differ between domains of life (e.g., 80S in eukaryotes, 70S in bacteria).