| cautious; watchful |
| an erroneous or unsuitable expression, act, etc. |
pathogen path·o·gen (pāth'ə-jən)
n.
An agent that causes disease, especially a living microorganism such as a bacterium, virus, or fungus.
| pathogen (pāth'ə-jən) Pronunciation Key
An agent that causes infection or disease, especially a microorganism, such as a bacterium or protozoan, or a virus. See Note at germ. |
A disease-causing agent. Microorganisms, viruses, and toxins are examples of pathogens.