EPIDEMIC

I. adjective see: demagogue Date: 1603 affecting or tending to affect a disproportionately large number of individuals within a population, community, or region at the same time , 2. excessively prevalent, contagious 4 , of, relating to, or constituting an ~ , ~al adjective ~ally adverb ~ity noun II. noun Date: 1757 an outbreak of ~ disease, an outbreak or product of sudden rapid spread, growth, or development