# cathelicidin

> English word · Noun

## Definitions
1. Any of a family of antimicrobial polypeptides found in lysosomes in polymorphonuclear leukocytes.

## Etymology
From cathelin (“the protein domain conserved in cathelicidins”) + -cide (“killer”) + -in, in 1995.

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