amoxicillin
/əˌmɒk.sɪˈsɪl.ɪn/
"amoxicillin" is a 11-letter English headword indexed on PlainSpell.
The verdict
“amoxicillin” is uncommon English (frequency #69,638 among 3,931 “A” headwords), classed as a noun. The kind of spelling people second-guess.
- #69,638
- frequency rank, English
- 3,931
- “A” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A moderate-spectrum, bacteriolytic beta-lactam antibiotic with the formula C₁₆H₁₉N₃O₅S, closely related to ampicillin.
Corpus desk
Index EN-amoxicillin · amoxicillin · English
amoxicillin · rank #69,638 · 0 variants · 0 confusables
- FREQ-RARE #69,638
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,931
- PHOTO-FINISH ammonite
Nearest frequency peer: ammonite (-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 “amoxicillin”
Sparse band: bars invert rank so rarer forms read shorter
- Alok
Alok
30,367 corpus weight
- ammonite
ammonite
30,364 corpus weight
- amoxicillin
amoxicillin
30,363 corpus weight
- andesite
andesite
30,362 corpus weight
- anhydride
anhydride
30,361 corpus weight
- annulus
annulus
30,360 corpus weight
What this shows Long-tail view: where “amoxicillin” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | amoxicillin |
| Language | English |
| Part of speech | Noun |
| IPA | /əˌmɒk.sɪˈsɪl.ɪn/ |
| Letters | 11 |
| Frequency rank | #69,638 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “amoxicillin” in English
Rare enough to double-check
amoxicillin is uncommon English at frequency #69,638 among 3,931 “A” headwords, classed as anoun, transcribed /əˌmɒk.sɪˈsɪl.ɪn/. Rarity is why readers land here mid-draft. Gloss: "A moderate-spectrum, bacteriolytic beta-lactam antibiotic with the formula C₁₆H₁₉N₃O₅S, closely related to ampicillin.".
Our edit-distance generator produced no likely misspellings for amoxicillin, and the word's spelling is regular enough that our generator found nothing worth flagging. 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 am(picillin) + (hydr)oxy + -cillin. The correct English form is amoxicillin, spelled A-M-O-X-I-C-I-L-L-I-N.
Definition
- 1A moderate-spectrum, bacteriolytic beta-lactam antibiotic with the formula C₁₆H₁₉N₃O₅S, closely related to ampicillin.
Etymology
From am(picillin) + (hydr)oxy + -cillin.
This word in other languages
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 "amoxicillin", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).