BRL-CAD BRL-CAD BRL-CAD is a constructive solid geometry (CSG) solid modeling computer-aided design (CAD) system. It includes an interactive geometry editor, ray tracing support for graphics rendering and geometric analysis, computer network distributed framebuffer support, scripting, image-processing and signal-processing tools. The entire package is distributed in source code and binary form. Although BRL-CAD can be used for a variety of engineering and graphics applications, the package's primary purpose continues to be the support of ballistic and electromagnetic analyses. In keeping with the Unix philosophy of developing independent tools to perform single, specific tasks and then linking the tools together in a
Acronym was formed from the Greek words , ', "topmost, extreme" and , ', "name.") For example, the army offense of being "absent without official leave" was abbreviated to "A.W.O.L." in reports, but when pronounced as a word ("awol"), it became an acronym. While initial letters are commonly used to form an acronym, the original definition was "a word made from the initial letters or syllables of other words", for example UNIVAC from UNIVersal Automatic Computer. In English, acronyms "pronounced as words" may be a 20th-century phenomenon. Linguist David Wilton in "Word Myths: Debunking Linguistic Urban Legends" claims that "forming words