electroencephalography

noun

"electroencephalography" is a 22-letter English headword indexed on PlainSpell.

The verdict

“electroencephalography” is uncommon English (frequency #89,322 among 2,246 “E” headwords), classed as a noun. The kind of spelling people second-guess.

#89,322
frequency rank, English
2,246
“E” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The measurement and recording of electrical activity in the brain for diagnostic purposes.

Corpus desk

Index EN-electroencephalography · electroencephalography · English

electroencephalography · rank #89,322 · 0 variants · 0 confusables

  • FREQ-RARE #89,322
  • LEN-MEGA 22 letters
  • VOW-9 9 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,246
  • PHOTO-FINISH electorally

Nearest frequency peer: electorally (-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 “electroencephalography”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “electroencephalography” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for electroencephalography
PropertyValue
Headwordelectroencephalography
LanguageEnglish
Part of speechNoun
Letters22
Frequency rank#89,322
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “electroencephalography” in English

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

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “electorally” (#89,321), “elderflower” (#89,320), “ecclesiology” (#89,319). Among 2,246 “E” headwords, “electroencephalography” is #89,322. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

electroencephalography is uncommon English at frequency #89,322 among 2,246 “E” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The measurement and recording of electrical activity in the brain for diagnostic purposes.".

No misspelling variants are generated for electroencephalography in our index, which points to an orthography that plays by predictable English rules. This headword has no recorded confusable partner, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From electro- + encephalo- + -graphy. The correct English form is electroencephalography, spelled E-L-E-C-T-R-O-E-N-C-E-P-H-A-L-O-G-R-A-P-H-Y.

Definition

  1. 1
    The measurement and recording of electrical activity in the brain for diagnostic purposes.

Recorded use

Wiktionary example

These source excerpts show how electroencephalography appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Indeed, while many philosophers of language in the 20th century proposed that we think in sentence-like strings of language, use of brain imaging technology like electroencephalography (EEG) and electrocorticography (ECoG) has since revealed that thinking more probably happens in a complex combination of images and associations.

Etymology

From electro- + encephalo- + -graphy.

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 "electroencephalography"?
"electroencephalography" is spelled E-L-E-C-T-R-O-E-N-C-E-P-H-A-L-O-G-R-A-P-H-Y.
What does "electroencephalography" mean?
As a noun, "electroencephalography" means: The measurement and recording of electrical activity in the brain for diagnostic purposes.
What is the origin of the word "electroencephalography"?
From electro- + encephalo- + -graphy. 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.

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

Source: FrequencyWords open word-frequency list