disulfide
/daɪˈsʌlfaɪd/
"disulfide" is a 9-letter English headword indexed on PlainSpell.
The verdict
“disulfide” is a moderately-common English word, ranked #48,705 in English word frequency and used as a noun.
- #48,705
- frequency rank, English
- 9
- letters
- 13
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A functional group with two sulfur atoms bonded to one another, described by the following formula: R–S–S–R'.
| Property | Value |
|---|---|
| Headword | disulfide |
| Language | English |
| Part of speech | Noun |
| IPA | /daɪˈsʌlfaɪd/ |
| Letters | 9 |
| Frequency rank | #48,705 |
| Misspellings tracked | 13 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “disulfide” sits in English frequency
Spelling & Dictionary Insight
The English entry for disulfide is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /daɪˈsʌlfaɪd/. Corpus data places it at rank #48,705 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 13 likely wrong-spelling variants for disulfide, with forms such as "ddisulfide", "dislufide", and "dissulfide". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. No close-neighbour confusable shows up for this headword in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From di- + sulfide. The correct English form is disulfide, spelled D-I-S-U-L-F-I-D-E.
Definition
- 1A functional group with two sulfur atoms bonded to one another, described by the following formula: R–S–S–R'.
- 2The anion ⁻S–S⁻.
- 3A binary compound of sulfur and another element in the ratio 2:1 (formula XS₂).
Etymology
From di- + sulfide.
Synonyms
Common misspellings
Also misspelled as: ddisulfide,dislufide,dissulfide,disuflide,disulfdie,disulffide,disulfidde,disulfied,disulifde,disullfide,diuslfide,dsiulfide,idsulfide
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of disulfide - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.
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
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Using “disulfide”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is D-I-S-U-L-F-I-D-E - every other letter order is a misspelling in standard orthography.
- Say it as /daɪˈsʌlfaɪd/ (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
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.