# serpin

> English word · Noun

## Definitions
1. Any of a family of proteins that inhibit serine proteases (especially trypsin)

## Etymology
Short for serine protease + -in

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