Three-dimensional visual language for higher-order logic.

"The Cube Language", M. Najork et al, 1991 IEEE Workshop on Visual Langs, Oct 1991, pp.218-224.

[Jargon File]

1. [short for "cubicle"] A module in the open-plan offices used at many programming shops. "I've got the manuals in my cube."

2. A NeXT machine (which resembles a matte-black cube).