Generatrix n. : That which generates; the point, or the mathematical magnitude, which, by its motion, generates another magnitude, as a line, surface, or solid; -- called also describent.

Example:
how are Generatrix and directrix related with tool work motions in turning,threading,drilling,planning etc?

Taxonomy
generatrix, particle effects, silicon graphics Irix, irix software, software company, exciting new products, visual design, visual programming, effects software, software development, sgi, Irix platform, new software, tools, digital media content, content creators, work platform, refined version.

Defination from the web:
generatrix is a company developing visual effects software for the silicon graphics Irix platform. ... GeneratriX is a new software company, devoted to create some original tools for those digital media content creators using Silicon Graphics IRIX ...