prednisolone
/pɹɛdˈnɪs.ə.ləʊn/
"prednisolone" is a 12-letter English headword indexed on PlainSpell.
The verdict
“prednisolone” is uncommon English (frequency #81,716 among 4,417 “P” headwords), classed as a noun. The kind of spelling people second-guess.
- #81,716
- frequency rank, English
- 4,417
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A synthetic glucocorticoid C₂₁H₂₈O₅ that is a dehydrogenated analog of cortisol and is used especially as an anti-inflammatory drug.
Corpus desk
Index EN-prednisolone · prednisolone · English
prednisolone · rank #81,716 · 0 variants · 0 confusables
- FREQ-RARE #81,716
- LEN-MEGA 12 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,417
- PHOTO-FINISH preschooler
Nearest frequency peer: preschooler (+1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “prednisolone”
Sparse band: bars invert rank so rarer forms read shorter
- poofy
poofy
18,290 corpus weight
- Portrush
Portrush
18,287 corpus weight
- prednisolone
prednisolone
18,285 corpus weight
- preschooler
preschooler
18,284 corpus weight
- Prins
Prins
18,282 corpus weight
- PRM
PRM
18,281 corpus weight
What this shows Long-tail view: where “prednisolone” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | prednisolone |
| Language | English |
| Part of speech | Noun |
| IPA | /pɹɛdˈnɪs.ə.ləʊn/ |
| Letters | 12 |
| Frequency rank | #81,716 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “prednisolone” in English
Rare enough to double-check
prednisolone is uncommon English at frequency #81,716 among 4,417 “P” headwords, classed as anoun, transcribed /pɹɛdˈnɪs.ə.ləʊn/. Rarity is why readers land here mid-draft. Gloss: "A synthetic glucocorticoid C₂₁H₂₈O₅ that is a dehydrogenated analog of cortisol and is used especially as an anti-inflammatory drug.".
prednisolone has no tracked misspelling variants, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From prednis(-ol)one. The correct English form is prednisolone, spelled P-R-E-D-N-I-S-O-L-O-N-E.
Definition
- 1A synthetic glucocorticoid C₂₁H₂₈O₅ that is a dehydrogenated analog of cortisol and is used especially as an anti-inflammatory drug.
Etymology
From prednis(-ol)one.
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "prednisolone", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 12 letters (nearest by frequency rank).