tetrahedral
"tetrahedral" is a 11-letter English headword indexed on PlainSpell.
The verdict
“tetrahedral” is uncommon English (frequency #62,568 among 3,151 “T” headwords), classed as an adjective. The kind of spelling people second-guess.
- #62,568
- frequency rank, English
- 3,151
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of, relating to, or having the shape of a tetrahedron.
Corpus desk
Index EN-tetrahedral · tetrahedral · English
tetrahedral · rank #62,568 · 0 variants · 0 confusables
- FREQ-RARE #62,568
- LEN-MEGA 11 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,151
- PHOTO-FINISH terrarium
Nearest frequency peer: terrarium (-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 “tetrahedral”
Sparse band: bars invert rank so rarer forms read shorter
- tendinitis
tendinitis
37,436 corpus weight
- terrarium
terrarium
37,434 corpus weight
- tetrahedral
tetrahedral
37,433 corpus weight
- thespian
thespian
37,432 corpus weight
- Thibodeau
Thibodeau
37,431 corpus weight
- Thucydides
Thucydides
37,430 corpus weight
What this shows Long-tail view: where “tetrahedral” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | tetrahedral |
| Language | English |
| Part of speech | Adjective |
| Letters | 11 |
| Frequency rank | #62,568 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “tetrahedral” in English
Rare enough to double-check
tetrahedral is uncommon English at frequency #62,568 among 3,151 “T” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Of, relating to, or having the shape of a tetrahedron.".
The misspelling generator found no plausible variants for tetrahedral, which points to an orthography that plays by predictable English rules. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From tetra- + -hedral. The correct English form is tetrahedral, spelled T-E-T-R-A-H-E-D-R-A-L.
Definition
- 1Of, relating to, or having the shape of a tetrahedron.
Recorded use
Wiktionary exampleThese source excerpts show how tetrahedral appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Of the convex polyhedra with regular faces, the only ones that have tetrahedral, octahedral, or icosahedral symmetry are the Platonic and Archimedean solids.
Etymology
From tetra- + -hedral.
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 "tetrahedral", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).