Generatrix

In geometry, generatrix or generator is a point, curve or surface that, when moved generates a new shape. The path of the generatrix motion is called directrix. For example, a cone can be created by rotating a line about intersecting axis. Generatrix of a cylinder is parallel to the axis. ...
Found on http://en.wikipedia.org/wiki/Generatrix

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.
Found on http://thinkexist.com/dictionary/meaning/generatrix/

generatrix

(from the article `cone`) The generatrix of a cone is assumed to be infinite in length, extending in both directions from the vertex. The cone so generated, therefore, has two ... in geometry, surface of revolution that is traced by a straight line (the generatrix) that always moves parallel to itself or some fixed line or ... [2 re...
Found on http://www.britannica.com/eb/a-z/g/19

Generatrix

Gen`er·a'trix noun ; plural Latin Generatrices , English Generatrixes . [ Latin ] (Geom.) 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 .
Found on http://www.encyclo.co.uk/webster/G/18
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