fractionation

noun

"fractionation" is a 13-letter English headword indexed on PlainSpell.

The verdict

“fractionation” is an uncommon English word, ranked #61,476 in English word frequency and used as a noun.

#61,476
frequency rank, English
13
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A separation process in which a certain quantity of a mixture is divided up into smaller quantities (fractions) in which the composition changes according to a gradient; an instance of this process.

Key facts for fractionation
PropertyValue
Headwordfractionation
LanguageEnglish
Part of speechNoun
Letters13
Frequency rank#61,476
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “fractionation” 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). fractionation 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 fractionation is 13 letters long, classified as a noun. Corpus data places it at rank #61,476 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

No generated misspelling entries exist for fractionation in our index, a straightforward case of a spelling with little room for common typos. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: By surface analysis, fraction + -ation, or, by surface analysis, fractionate + -ion. The correct English form is fractionation, spelled F-R-A-C-T-I-O-N-A-T-I-O-N.

Definition

  1. 1
    A separation process in which a certain quantity of a mixture is divided up into smaller quantities (fractions) in which the composition changes according to a gradient; an instance of this process.
  2. 2
    The division of a total dose of radiation into fractions.
  3. 3
    A preliminary stage of encryption that divides each plaintext symbol into several ciphertext symbols.
  4. 4
    A form of hypnosis where the patient is made to enter and leave a trance state many times in quick succession.

Etymology

By surface analysis, fraction + -ation, or, by surface analysis, fractionate + -ion.

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 "fractionation"?
"fractionation" is spelled F-R-A-C-T-I-O-N-A-T-I-O-N.
What does "fractionation" mean?
As a noun, "fractionation" means: A separation process in which a certain quantity of a mixture is divided up into smaller quantities (fractions) in which the composition changes according to a gradient; an instance of this process.
What is the origin of the word "fractionation"?
By surface analysis, fraction + -ation, or, by surface analysis, fractionate + -ion. 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 “fractionation”

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

  • The one correct English spelling is F-R-A-C-T-I-O-N-A-T-I-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
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