| ASCII | American Standard Code for Information Interchange, a machine
code for the display of human readable characters. |
| Else When | Quadrants 2 and 4. |
| GIS | Geographic Information System |
| join-point | Intersection of two lines approximating successive strings. |
| link-point | Point linking two strings. |
| mixel | MIXture pixEL |
| OOPS | Object Oriented Programming System |
| OopCdaisy | Homegrown Object Oriented Programming system in C |
| pixel | PICture ELement |
| raster classification | A grid representing landcover classes. |
| raster image | Picture consisting of a grid of numbers. |
| spaghetti - Edible | Marco Polo's new fangled pasta |
| spaghetti - Digital | lists of directed line segments |
| string - ASCII | C style string of characters. |
| string - Vexil | list of vexils |
| vector map | Map made up of directed line segments. |
| vector representation | A vector map representing a raster classification. |
| vexil | Vector bounding a pixel. |
| VMT | Virtual Method Table - the heart of OOPS |
| voxel | VOLume ELement |