|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|the offspring of a zebra and a donkey.|
|1.||(esp of a disease) attacking or affecting many persons simultaneously in a community or area|
|2.||a widespread occurrence of a disease: an influenza epidemic|
|3.||a rapid development, spread, or growth of something, esp something unpleasant: an epidemic of strikes|
|[C17: from French épidémique, via Late Latin from Greek epidēmia literally: among the people, from |
epidemic ep·i·dem·ic (ěp'ĭ-děm'ĭk) or ep·i·dem·i·cal (-ĭ-kəl)
Spreading rapidly and extensively by infection and affecting many individuals in an area or a population at the same time, as of a disease or illness. n.
An outbreak or unusually high occurrence of a disease or illness in a population or area.
epidemicity ep·i·de·mic·i·ty (ěp'ĭ-də-mĭs'ĭ-tē)
The ability to spread from one host to others; the state of being epidemic.