miRNA
"mirna" is a 5-letter English headword indexed on PlainSpell.
The verdict
“miRNA” is uncommon English (frequency #53,101 among 4,057 “M” headwords), classed as a noun. The kind of spelling people second-guess.
- #53,101
- frequency rank, English
- 4,057
- “M” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A microRNA.
Corpus desk
Index EN-mirna · miRNA · English
miRNA · rank #53,101 · 0 variants · 0 confusables
- FREQ-RARE #53,101
- LEN-MID 5 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,057
- PHOTO-FINISH metrology
Nearest frequency peer: metrology (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “miRNA”
Sparse band: bars invert rank so rarer forms read shorter
- Methodism
Methodism
46,902 corpus weight
- metrology
metrology
46,901 corpus weight
- miRNA
miRNA
46,900 corpus weight
- Mitcham
Mitcham
46,897 corpus weight
- mobo
mobo
46,896 corpus weight
- modding
modding
46,895 corpus weight
What this shows Long-tail view: where “miRNA” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | miRNA |
| Language | English |
| Part of speech | Noun |
| Letters | 5 |
| Frequency rank | #53,101 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “miRNA” in English
Rare enough to double-check
miRNA is uncommon English at frequency #53,101 among 4,057 “M” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A microRNA.".
miRNA doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. No close-neighbour confusable shows up for this headword in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: 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. The correct English form is miRNA, spelled M-I-R-N-A.
Definition
- 1A microRNA.
Recorded use
Wiktionary examplesThese source excerpts show how miRNA appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
There are ~80 genes in the C elegans genome coding for miRNAs that are twenty-one to twenty-four nucleotides long.
MicroRNAs (miRNAs) finely regulate gene expression and play an important role in various cellular processes, including cell growth, differentiation, proliferation, and apoptosis.
Etymology
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.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "miRNA", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 5 letters (nearest by frequency rank).