Pronunciation: (plot'ur), [key]
1. a person or thing that plots.
2. an instrument, as a protractor, for plotting lines and measuring angles on a chart.
3. Computers.an output device that produces a graphical representation by drawing on paper, as with one or more attached pens.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.