(n) :
(printing, attributive) A printing and photoengraving technique dating from the late 19th century, involving coloured dots or some other simple repeating pattern, spaced or overlapping, to produce more complex mixed colours.
(n) :
(printing, attributive) A printing and photoengraving technique dating from the late 19th century, involving coloured dots or some other simple repeating pattern, spaced or overlapping, to produce more complex mixed colours.