trisomy
/ˈtɹʌɪ.sə(ʊ)mi/
"trisomy" is a 7-letter English headword indexed on PlainSpell.
The verdict
“trisomy” is uncommon English (frequency #79,148 among 3,151 “T” headwords), classed as a noun. The kind of spelling people second-guess.
- #79,148
- frequency rank, English
- 3,151
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The presence of three copies, instead of the normal two, of a particular chromosome of an organism.
Corpus desk
Index EN-trisomy · trisomy · English
trisomy · rank #79,148 · 0 variants · 0 confusables
- FREQ-RARE #79,148
- LEN-LONG 7 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,151
- PHOTO-FINISH Triplett
Nearest frequency peer: Triplett (-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 “trisomy”
Sparse band: bars invert rank so rarer forms read shorter
- Transylvani…
Transylvanian
20,858 corpus weight
- Treves
Treves
20,856 corpus weight
- Triplett
Triplett
20,854 corpus weight
- trisomy
trisomy
20,853 corpus weight
- Tsushima
Tsushima
20,849 corpus weight
- TTR
TTR
20,848 corpus weight
What this shows Long-tail view: where “trisomy” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | trisomy |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈtɹʌɪ.sə(ʊ)mi/ |
| Letters | 7 |
| Frequency rank | #79,148 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “trisomy” in English
Rare enough to double-check
trisomy is uncommon English at frequency #79,148 among 3,151 “T” headwords, classed as anoun, transcribed /ˈtɹʌɪ.sə(ʊ)mi/. Rarity is why readers land here mid-draft. Gloss: "The presence of three copies, instead of the normal two, of a particular chromosome of an organism.".
No misspelling variants are generated for trisomy in our index, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From trisome + -y. The correct English form is trisomy, spelled T-R-I-S-O-M-Y.
Definition
- 1The presence of three copies, instead of the normal two, of a particular chromosome of an organism.
Etymology
From trisome + -y.
This word in other languages
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 "trisomy", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 7 letters (nearest by frequency rank).