Definition
Any microorganism that causes disease—bacteria, viruses, fungi, or parasites that decided being peaceful neighbors was boring. The microscopic villains of human health that keep infectious disease specialists employed.
Example Usage
We identified the pathogen as E. coli, proving once again that hand washing is not optional.
Origin
From Greek 'pathos' (suffering) and 'genes' (producer), coined in 1880s with germ theory
Fun Fact
Only about 1% of bacteria are pathogenic—the rest are either harmless or actively helpful, but that 1% causes enough chaos to keep us perpetually paranoid.
Source: Microbiology and infectious disease terminology
Related Terms
Translate This Term
See “pathogen” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
Try the Translator