knockout
[printing] In offset printing, an area that has been defined to cut through or mask specific layers of colored inks. […]
[printing] In offset printing, an area that has been defined to cut through or mask specific layers of colored inks. […]
1 [computing] A database of information about a subject, used in expert systems. 2 [ESRI software] In PLTS, a series
[surveying] A surveyed point that has an established x,y coordinate value. Known points are used in survey operations to extend