from
The Collaborative International Dictionary of English v.0.48
Stipple \Stip"ple\, v. t. [imp. & p. p. {Stippled}; p. pr. & vb.
n. {Stippling}.] [D. stippelen to make points, to spot, dot,
from stippel, dim. of stip a dot, spot.]
1. To engrave by means of dots, in distinction from engraving
in lines.
[1913 Webster]
The interlaying of small pieces can not altogether
avoid a broken, stippled, spotty effect. --Milman.
[1913 Webster]
2. To paint, as in water colors, by small, short touches
which together produce an even or softly graded surface.
[1913 Webster] Stipple