peptidase
"peptidase" is a 9-letter English headword indexed on PlainSpell.
The verdict
“peptidase” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any enzyme that catalyzes the hydrolysis of peptides into amino acids; a protease.
Corpus desk
Index EN-peptidase · peptidase · English
peptidase · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 9 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "P" thin
- PHOTO-UNK Peer pending
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.
| Property | Value |
|---|---|
| Headword | peptidase |
| Language | English |
| Part of speech | Noun |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “peptidase” in English
Rare enough to double-check
peptidase is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Any enzyme that catalyzes the hydrolysis of peptides into amino acids; a protease.".
The misspelling generator found no plausible variants for peptidase, suggesting the orthography follows predictable English patterns. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From peptide + -ase. The correct English form is peptidase, spelled P-E-P-T-I-D-A-S-E.
Definition
- 1Any enzyme that catalyzes the hydrolysis of peptides into amino acids; a protease.
Etymology
From peptide + -ase.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.