# protease

> English word · Noun · IPA /ˈpɹəʊtɪeɪz/ · frequency rank #38,114

## Definitions
1. An enzyme that cuts or cleaves proteins.

## Etymology
From prote(in) + -ase.

## Easily confused with
- **protest** (https://plainspell.com/en/vs/protease-vs-protest)
- **protégé** (https://plainspell.com/en/vs/protease-vs-protege)
- **Proteus** (https://plainspell.com/en/vs/protease-vs-proteus)
- **pretense** (https://plainspell.com/en/vs/pretense-vs-protease)

## Common misspellings (11)
`portease`, `pprotease`, `proetase`, `protaese`, `proteaes`, `proteasse`, `protesae`, `prottease`, `prrotease`, `prtoease`, `rpotease`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/protease