ciprofloxacin
/ˌsɪp.ɹəˈflɑk.səs.ɪn/
"ciprofloxacin" is a 13-letter English headword indexed on PlainSpell.
The verdict
“ciprofloxacin” is uncommon English (frequency #84,102 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #84,102
- frequency rank, English
- 5,599
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A broad-spectrum fluoroquinolone antibiotic C₁₇H₁₈FN₃O₃ that is often administered in the form of its hydrochloride C₁₇H₁₈FN₃O₃·HCl and is effective especially against gram-negative bacteria.
Corpus desk
Index EN-ciprofloxacin · ciprofloxacin · English
ciprofloxacin · rank #84,102 · 0 variants · 0 confusables
- FREQ-RARE #84,102
- LEN-MEGA 13 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH cienega
Nearest frequency peer: cienega (-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 “ciprofloxacin”
Sparse band: bars invert rank so rarer forms read shorter
- chode
chode
15,904 corpus weight
- Choudhary
Choudhary
15,903 corpus weight
- cienega
cienega
15,900 corpus weight
- ciprofloxac…
ciprofloxacin
15,899 corpus weight
- Clayton's
Clayton's
15,897 corpus weight
- cloudiness
cloudiness
15,894 corpus weight
What this shows Long-tail view: where “ciprofloxacin” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | ciprofloxacin |
| Language | English |
| Part of speech | Noun |
| IPA | /ˌsɪp.ɹəˈflɑk.səs.ɪn/ |
| Letters | 13 |
| Frequency rank | #84,102 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “ciprofloxacin” in English
Rare enough to double-check
ciprofloxacin is uncommon English at frequency #84,102 among 5,599 “C” headwords, classed as anoun, transcribed /ˌsɪp.ɹəˈflɑk.səs.ɪn/. Rarity is why readers land here mid-draft. Gloss: "A broad-spectrum fluoroquinolone antibiotic C₁₇H₁₈FN₃O₃ that is often administered in the form of its hydrochloride C₁₇H₁₈FN₃O₃·HCl and is effective especially against gram-negative bacteria.".
Zero misspellings are on record for ciprofloxacin in our index, since its letter sequence doesn't invite the usual edit-distance slips. We don't track a confusable pairing for this entry, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From cy(clo)pro(pyl) + -floxacin (“nalidixic acid derivative”). The correct English form is ciprofloxacin, spelled C-I-P-R-O-F-L-O-X-A-C-I-N.
Definition
- 1A broad-spectrum fluoroquinolone antibiotic C₁₇H₁₈FN₃O₃ that is often administered in the form of its hydrochloride C₁₇H₁₈FN₃O₃·HCl and is effective especially against gram-negative bacteria.
Etymology
From cy(clo)pro(pyl) + -floxacin (“nalidixic acid derivative”).
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 "ciprofloxacin", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 13 letters (nearest by frequency rank).