retinoic
"retinoic" is a 8-letter English headword indexed on PlainSpell.
The verdict
“retinoic” is uncommon English (frequency #83,681 among 21,470 “R” headwords), classed as an adjective. The kind of spelling people second-guess.
- #83,681
- frequency rank, English
- 21,470
- “R” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Derived from retinol; relating to retinoic acid or its derivatives
| Property | Value |
|---|---|
| Headword | retinoic |
| Language | English |
| Part of speech | Adjective |
| Letters | 8 |
| Frequency rank | #83,681 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “retinoic” sits in English frequency
Rare enough to double-check
retinoic is uncommon English at frequency #83,681 among 21,470 “R” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Derived from retinol; relating to retinoic acid or its derivatives".
The misspelling generator found no plausible variants for retinoic, since its letter sequence doesn't invite the usual edit-distance slips. 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 retina + -oic. The correct English form is retinoic, spelled R-E-T-I-N-O-I-C.
Definition
- 1Derived from retinol; relating to retinoic acid or its derivatives
Etymology
From retina + -oic.
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 “retinoic”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is R-E-T-I-N-O-I-C - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.