infectious disease n.
A disease resulting from the presence and activity of a pathogenic microbial agent.
A disease caused by a microorganism or other agent, such as a bacterium, fungus, or virus, that enters the body of an organism.
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|