1. 1. (used with a sing. verb) The making of drawings in accordance with the rules of mathematics, as in engineering or architecture.
   2. (used with a pl. verb) Calculations, as of structural stress, from such drawings.
2. (used with a sing. or pl. verb) See graphic arts (sense 2).
3. Computer Science.
   1. (used with a sing. or pl. verb) The pictorial representation and manipulation of data, as used in computer-aided design and manufacture, in typesetting and the graphic arts, and in educational and recreational programs.
   2. (used with a sing. verb) The process by which a computer displays data pictorially.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.