Adjective
Of
a
disease
:
epidemic
over
a
wide
geographical
area
and
affecting
a
large
proportion
of
the
population
;
also
,
of
or
pertaining
to
a
disease
of
this
nature
.
Noun
A
pandemic
disease
;
a
disease
that
affects
a
wide
geographical
area
and
a
large
proportion
of
the
population
.