trinomial
"trinomial" is a 9-letter English headword indexed on PlainSpell.
The verdict
“trinomial” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Consisting of three names or parts or terms.
| Property | Value |
|---|---|
| Headword | trinomial |
| Language | English |
| Part of speech | Adjective |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “trinomial” sits in English frequency
Rare enough to double-check
trinomial is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Consisting of three names or parts or terms.".
No generated misspelling entries exist for trinomial in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From tri- + -nomial. The correct English form is trinomial, spelled T-R-I-N-O-M-I-A-L.
Definition
- 1Consisting of three names or parts or terms.
Etymology
From tri- + -nomial.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “trinomial”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-R-I-N-O-M-I-A-L - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.