quadrupole
"quadrupole" is a 10-letter English headword indexed on PlainSpell.
The verdict
“quadrupole” is uncommon English (frequency #79,893 among 2,880 “Q” headwords), classed as a noun. The kind of spelling people second-guess.
- #79,893
- frequency rank, English
- 2,880
- “Q” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A distribution of either electric charge or magnetization equivalent to two dipoles that point in opposite directions.
Corpus desk
Index EN-quadrupole · quadrupole · English
quadrupole · rank #79,893 · 0 variants · 0 confusables
- FREQ-RARE #79,893
- LEN-MEGA 10 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,880
- PHOTO-FINISH quibbling
Nearest frequency peer: quibbling (+2 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.
Frequency neighbourhood for “quadrupole”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- pupal
pupal
20,111 corpus weight
- quadrupole
quadrupole
20,108 corpus weight
- quibbling
quibbling
20,106 corpus weight
- quickens
quickens
20,105 corpus weight
- raad
raad
20,104 corpus weight
- Radhakrishn…
Radhakrishnan
20,103 corpus weight
What this shows Bars show where “quadrupole” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | quadrupole |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Frequency rank | #79,893 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “quadrupole” sits in English frequency
Rare enough to double-check
quadrupole is uncommon English at frequency #79,893 among 2,880 “Q” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
No misspelling variants are generated for quadrupole in our index, a sign its spelling follows regular English conventions. 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 quadru- + pole. The correct English form is quadrupole, spelled Q-U-A-D-R-U-P-O-L-E.
Definition
- 1A distribution of either electric charge or magnetization equivalent to two dipoles that point in opposite directions.
- 2A magnet with two north poles and two south poles, used to focus a beam of particles.
Recorded use
Wiktionary exampleThese source excerpts show how quadrupole appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Consider a linear quadrupole consisting of a point charge of strength 2q at the origin and point charges of strength —q at (0, 0, a) and (0, 0, —a).
Etymology
From quadru- + pole.
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "quadrupole", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency 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.