pathogen
Definition from Wiktionary, the free dictionary
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[edit] English
[edit] Etymology
[edit] Noun
pathogen (plural pathogens)
- (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.
[edit] Derived terms
[edit] Translations
an organism or substance that causes disease
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