generatrix
/ˈdʒɛnəˌreɪtrɪks/
noun
- A point, line, or surface that moves to create a geometric shape.
- The teacher explained how the generatrix of a cone is the line that sweeps out its surface.
- In geometry, a straight line used as a generatrix can form a cylinder when rotated.
- To understand the shape, imagine a generatrix moving along a circular path.