Contagion - Definition
contagion
n 1: any disease easily transmitted by contact [syn: contagious
disease, contagion]
2: an incident in which an infectious disease is transmitted
[syn: infection, contagion, transmission]
3: the communication of an attitude or emotional state among a
number of people; "a contagion of mirth"; "the infection of
his enthusiasm for poetry" [syn: contagion, infection]