Medical Definition of Micro-RNA
Micro-RNA: A tiny piece of RNA, about 21 to 23 bases in length, that binds to matching pieces of messenger RNA to make it double-stranded and decrease the production of the corresponding protein. Micro-RNA's were first discovered in the roundworm C. elegans in the early 1990s and are now known in many species, including humans. Abbreviated miRNA.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 9/14/2016
Medical Dictionary Definitions A - Z
Search Medical Dictionary
- Personalized Tips for Managing Migraine
- Do You Take Good Care of Your Eyes?
- Tips for a Clean Home & Healthy Cat