1. (Science: microbiology) Denoting a microorganism that does not ordinarily cause disease but that, under certain circumstances (for example impaired immune responses resulting from other disease or drug treatment), becomes pathogenic.

2. (Science: disease) Denoting a disease or infection caused by such an organism.

Retrieved from "http://www.biology-online.org/bodict/index.php?title=Opportunistic&oldid=31678"
First | Previous (Opportunist) | Next (Opportunistic infections) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.