surfactant

/səɹˈfæktənt/

//səɹˈfæktənt// noun

By · According to Wiktionary data (CC BY-SA) ·

"surfactant" is a 10-letter English headword indexed on PlainSpell.

The verdict

“surfactant” has 16 generated spelling variants in the English index at frequency #47,361. The variants make it a useful spelling check.

#47,361
frequency rank, English
54,294
“S” headwords
16
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A surface-active agent, or wetting agent, capable of reducing the surface tension of a liquid; typically organic compounds having a hydrophilic “head” and a hydrophobic “tail”.

Key facts for surfactant
PropertyValue
Headwordsurfactant
LanguageEnglish
Part of speechNoun
IPA/səɹˈfæktənt/
Letters10
Frequency rank#47,361
Misspellings tracked16
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “surfactant” 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). surfactant lands here:

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

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

A misspelling magnet

The generator records 16 spelling variants around surfactant (IPA /səɹˈfæktənt/), anoun. Corpus frequency is #47,361 among 54,294 “S” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 16 likely wrong-spelling variants for surfactant, with forms such as "srufactant", "ssurfactant", and "sufractant". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: Blend of surface-active + agent. The correct English form is surfactant, spelled S-U-R-F-A-C-T-A-N-T.

Definition

  1. 1
    A surface-active agent, or wetting agent, capable of reducing the surface tension of a liquid; typically organic compounds having a hydrophilic “head” and a hydrophobic “tail”.
  2. 2
    A lipoprotein in the tissues of the lung that reduces surface tension and permits more efficient gas transport.

Etymology

Blend of surface-active + agent.

This word in other languages

surfactante(Español)tensioactif(Français)Tensid(Deutsch)

Common misspellings

Also misspelled as:

  • srufactant
  • ssurfactant
  • sufractant
  • surafctant
  • surfacatnt
  • surfacctant
  • surfactannt
  • surfactantt
  • surfactatn
  • surfactnat
  • surfacttant
  • surfatcant
  • surfcatant
  • surffactant
  • surrfactant
  • usrfactant

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of surfactant - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

srufactant2ssurfactant1sufractant2surafctant2surfacatnt2surfacctant1surfactannt1surfactantt1
Edit distance from "surfactant"

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 "surfactant"?
"surfactant" is spelled S-U-R-F-A-C-T-A-N-T. The IPA pronunciation is /səɹˈfæktənt/.
What does "surfactant" mean?
As a noun, "surfactant" means: A surface-active agent, or wetting agent, capable of reducing the surface tension of a liquid; typically organic compounds having a hydrophilic “head” and a hydrophobic “tail”.
What are common misspellings of "surfactant"?
Common misspellings include "srufactant", "ssurfactant", "sufractant", "surafctant", "surfacatnt". The correct spelling is "surfactant".
How do you pronounce "surfactant"?
The IPA (International Phonetic Alphabet) transcription for "surfactant" is /səɹˈfæktənt/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "surfactant"?
Blend of surface-active + agent. 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 “surfactant”

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

  • The one correct English spelling is S-U-R-F-A-C-T-A-N-T - every other letter order is a misspelling in standard orthography.
  • Say it as /səɹˈfæktənt/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Same frequency band

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