| a type of RNA, distinguished by its length and abundance, functioning in protein synthesis as a component of ribosomes. Abbreviation: rRNA |
| ribosomal RNA n. Abbr. rRNA The RNA that is a permanent structural part of a ribosome. |
ribosomal RNA n.
See rRNA.
| ribosomal RNA (rī'bə-sō'məl) Pronunciation Key
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. |