penton

noun

"penton" is a 6-letter English headword indexed on PlainSpell.

The verdict

“penton” is uncommon English (frequency #85,635 among 46,516 “P” headwords), classed as a noun. The kind of spelling people second-guess.

#85,635
frequency rank, English
46,516
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A pentagonal capsomere of an adenovirus capsid.

Key facts for penton
PropertyValue
Headwordpenton
LanguageEnglish
Part of speechNoun
Letters6
Frequency rank#85,635
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “penton” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). penton lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

penton is uncommon English at frequency #85,635 among 46,516 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A pentagonal capsomere of an adenovirus capsid.".

Zero misspellings are on record for penton in our index, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From pent- + -on. The correct English form is penton, spelled P-E-N-T-O-N.

Definition

  1. 1
    A pentagonal capsomere of an adenovirus capsid.

Etymology

From pent- + -on.

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 "penton"?
"penton" is spelled P-E-N-T-O-N.
What does "penton" mean?
As a noun, "penton" means: A pentagonal capsomere of an adenovirus capsid.
What is the origin of the word "penton"?
From pent- + -on. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “penton”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is P-E-N-T-O-N - 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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list