The definition of {konju} is rather cryptic.
x1 is a cone [shape/form] of material x2 with vertex x3. Also ellipse, ellipsoid (= konclupa). See also jesni, djine, sovda, kojna, jganu.
either only the surface of an object made after the revolution of a triangle. That's why konju3 seems strange. Why only vertex is defined?
Definitely cone it's not an ellipse.
Could you please explain this?