(a) a type of drawing board on which the positions or courses of objects may be plotted; (b) Computing rare, a flatbed plotter (plotter, n. 2c).

Computing. A printing device for producing graphs or line drawings in response to computer output; (hence) any device capable of drawing with a pen…

(a) Military a table on which plotting of maps may be carried out; esp. a large table bearing a small-scale map of a region on which the positions of…