Noun
The
process
of
printing
an
image
by
drawing
the
image
with
a
water-repellent
material
onto
a
hard
,
flat
surface
(
typically
metal
),
then
copying
the
surface
by
applying
water
and
ink
(
or
the
equivalent
)
to
it
and
pressing
another
material
against
it
.