# Hansen's disease

> English word · Noun

## Definitions
1. The disease leprosy, caused by infection by Mycobacterium leprae.

## Etymology
Named after Norwegian physician Gerhard Armauer Hansen (1841–1912), who in 1873 discovered the bacterium causing the disease.

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