Associations to the word «Pathogen»

Wiktionary

PATHOGEN, noun. (pathology) (immunology) Any organism or substance, especially a microorganism, capable of causing disease, such as bacteria, viruses, protozoa or fungi. Microorganisms are not considered to be pathogenic until they have reached a population size that is large enough to cause disease.

Dictionary definition

PATHOGEN, noun. Any disease-producing agent (especially a virus or bacterium or other microorganism).

Wise words

The difference between the right word and the almost right word is the difference between lightning and a lightning bug.
Mark Twain