pathogen

[path-uh-juhn, ‑-jen]

noun

1. any disease-producing agent, especially a virus, bacterium, or other microorganism.

pathogen

/ ˈpæθəˌdʒiːn, ˈpæθəˌdʒɛn /

noun

1. any agent that can cause disease

pathogen

1. An agent that causes infection or disease, especially a microorganism, such as a bacterium or protozoan, or a virus.

2. See Note at germ

pathogen

1. A disease-causing agent. Microorganisms, viruses, and toxins are examples of pathogens.

Other Word Forms

• antipathogen noun

Word History and Origins

Origin of pathogen¹

First recorded in 1940–45; patho- + -gen

Example Sentences

Climate change may be rewriting the map of disease - and even the rarest pathogens may not stay rare for long.

From BBC

Studies show these droppings contain at least seven types of zoonotic pathogens that can cause diseases such as pneumonia, fungal infections and even lung damage in humans.

From BBC

Using messenger RNA as an intermediary in their actions, the vaccines instruct the body how to manufacture parts of a pathogen that its immune system can recognize and fight.

From Los Angeles Times

Crews finished repairs Wednesday at noon and were working to re-pressurize and test the water line for any pathogens or contaminants, according to a statement from L.A.

From Los Angeles Times

Several studies have shown pets and owners can potentially swap pathogens, including the hospital 'superbug' MRSA.

From BBC

Related Words

• ailment 
• disease 
• germ 
• illness 
• infection 
• microbe 
• microorganism 
• sickness