pyroclastic
"pyroclastic" is a 11-letter English headword indexed on PlainSpell.
The verdict
“pyroclastic” is uncommon English (frequency #64,641 among 46,516 “P” headwords), classed as an adjective. The kind of spelling people second-guess.
- #64,641
- frequency rank, English
- 46,516
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Mostly composed of rock fragments of volcanic origin or comminuted during an eruption.
| Property | Value |
|---|---|
| Headword | pyroclastic |
| Language | English |
| Part of speech | Adjective |
| Letters | 11 |
| Frequency rank | #64,641 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “pyroclastic” sits in English frequency
Rare enough to double-check
pyroclastic is uncommon English at frequency #64,641 among 46,516 “P” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Mostly composed of rock fragments of volcanic origin or comminuted during an eruption.".
The misspelling generator found no plausible variants for pyroclastic, and the word's spelling is regular enough that our generator found nothing worth flagging. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From pyro- + clastic, from Ancient Greek πῦρ (pûr, “fire”), and κλαστός (klastós, “broken”). The correct English form is pyroclastic, spelled P-Y-R-O-C-L-A-S-T-I-C.
Definition
- 1Mostly composed of rock fragments of volcanic origin or comminuted during an eruption.
Etymology
From pyro- + clastic, from Ancient Greek πῦρ (pûr, “fire”), and κλαστός (klastós, “broken”).
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
How do you spell "pyroclastic"?
What does "pyroclastic" mean?
What is the origin of the word "pyroclastic"?
Is PlainSpell free to use?
Using “pyroclastic”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is P-Y-R-O-C-L-A-S-T-I-C - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.