The story
Named after two German doctors who modified the stain: the bacteriologist Franz Ziehl (1859–1926) and the pathologist Friedrich Neelsen (1854–1898).
Etymology from Wiktionary, CC BY-SA 4.0.
Ziehl-Neelsen stain
Today it means: A bacteriological stain used to identify acid-fast organisms, mainly mycobacteria. Full definition →