generation in Wingdings is ♑︎♏︎■︎♏︎❒︎♋︎⧫︎♓︎□︎■︎

The formation or production of any geometrical magnitude, as aline, a surface, a solid, by the motion, in accordance with amathematical law, of a point or a magnitude; as, the generation of aline or curve by the motion of a point, of a surface by a line, asphere by a semicircle, etc.