from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See orthogonal projection.
from the GNU version of the Collaborative International Dictionary of English
- adj. that projection which is made by drawing lines, from every point to be projected, perpendicular to the plane of projection. Such a projection of the sphere represents its circles as seen in perspective by an eye supposed to be placed at an infinite distance, the plane of projection passing through the center of the sphere perpendicularly to the line of sight.
Sorry, no etymologies found.