Meanings
mirna1
miRNA2
plural miRNAs
- biologyA microRNA.
There are ~80 genes in the C elegans genome coding for miRNAs that are twenty-one to twenty-four nucleotides long.
2007, Benjamin Lewin, Genes IX, →ISBN, page 3431 more example
MicroRNAs (miRNAs) finely regulate gene expression and play an important role in various cellular processes, including cell growth, differentiation, proliferation, and apoptosis.
2010, Dimond, Patricia F., "miRNAs' Therapeutic Potential" (original copy), Genetic Engineering & Biotechnology News, vol. 30, no. 6, page 1
Origin
From microRNA. The seminal article on microRNAs did not introduce the abbreviation miRNA nor the term microRNA, but rather referred to the entities as small RNAs.
Full word history & related roots →Rhymes & wordplay
Anagrams
Cite this entry
mirna. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/mirna
“mirna.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mirna. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “mirna,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/mirna.
Source: mirna on Wiktionary, CC BY-SA 4.0.