# johnin

> English word · Noun

## Definitions
1. A preparation made from Mycobacterium paratuberculosis used as an allergen in cases of paratuberculosis (Johne's disease).

## Etymology
From Johne + -in.

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