stippling
Webster's Dictionary (GCIDE)
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
Stipple \Stip"ple\, Stippling \Stip"pling\, n. (Engraving) A mode of execution which produces the effect by dots or small points instead of lines. [1913 Webster]
2.(Paint.) A mode of execution in which a flat or even tint is produced by many small touches. [1913 Webster]