Definition of pandemic

< pandect

pandemonium >

pan·dem·ic    (pn-dmk) KEY 

ADJECTIVE:

1. Widespread; general.
2. Medicine Epidemic over a wide geographic area and affecting a large proportion of the population: pandemic influenza.

NOUN:

A pandemic disease.

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ETYMOLOGY:
From Late Latin pandmus, from Greek pandmos, of all the people : pan-, pan- + dmos, people; see d- in Indo-European roots