electroencephalography

noun

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

The verdict

“electroencephalography” is an uncommon English word, ranked #89,322 in English word frequency and used as a noun.

#89,322
frequency rank, English
22
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The measurement and recording of electrical activity in the brain for diagnostic purposes.

Key facts for electroencephalography
PropertyValue
Headwordelectroencephalography
LanguageEnglish
Part of speechNoun
Letters22
Frequency rank#89,322
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “electroencephalography” 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). electroencephalography lands here:

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

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

Spelling & Dictionary Insight

The English entry for electroencephalography is 22 letters long, classified as a noun. Corpus data places it at rank #89,322 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "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.

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.

Using “electroencephalography”

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

  • The one correct English spelling is E-L-E-C-T-R-O-E-N-C-E-P-H-A-L-O-G-R-A-P-H-Y - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
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